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Contents
- The climate of Lahaina
- The best time to visit Lahaina
- The worst time to visit Lahaina
- Spring weather in Lahaina
- Summer weather in Lahaina
- Autumn weather in Lahaina
- Winter weather in Lahaina
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Lahaina
Classified under the Köppen climate groups, Lahaina, Hawaii, USA enjoys a As type climate. This typology, given the name "Tropical wet and dry or savanna" classifies regions with a notable dry season during the so-called 'summer'. Lahaina's geographical setting lends itself to stable weather conditions with only minor fluctuations throughout the year.
Studying the climate data reveals that temperature highs hover between 73.9°F (23.3°C) in February to 79.7°F (26.5°C) in September. On the low end, the temperatures range from a pleasant 70.7°F (21.5°C) in March to a balmy 76.5°F (24.7°C) from August to October. The relative humidity is consistent throughout the year, with levels sitting between 75% in multiple months and 77% in July.
Rainfall showcases a larger range, from a minimal 0.35" (9mm) in July to a peak of 1.1" (28mm) in March. Monthly rainfall days also showcase variety with a low of 7.7 days in November and high of 13.4 days in March. Notably, sea temperatures are uniformly warm, from 76°F (24.4°C) in March to a warm 80.2°F (26.8°C) in September.
Exceptionally, the highest winds gust at 18.8mph (30.3km/h) in July whereas the lowest dip to 14.5mph (23.3km/h) in January. Among these overall stable weather conditions, March stands out as the month with highest rainfall, and July as the driest month.
Studying the climate data reveals that temperature highs hover between 73.9°F (23.3°C) in February to 79.7°F (26.5°C) in September. On the low end, the temperatures range from a pleasant 70.7°F (21.5°C) in March to a balmy 76.5°F (24.7°C) from August to October. The relative humidity is consistent throughout the year, with levels sitting between 75% in multiple months and 77% in July.
Rainfall showcases a larger range, from a minimal 0.35" (9mm) in July to a peak of 1.1" (28mm) in March. Monthly rainfall days also showcase variety with a low of 7.7 days in November and high of 13.4 days in March. Notably, sea temperatures are uniformly warm, from 76°F (24.4°C) in March to a warm 80.2°F (26.8°C) in September.
Exceptionally, the highest winds gust at 18.8mph (30.3km/h) in July whereas the lowest dip to 14.5mph (23.3km/h) in January. Among these overall stable weather conditions, March stands out as the month with highest rainfall, and July as the driest month.
The best time to visit Lahaina
The inviting climate of Lahaina welcomes visitors throughout the year. However, for those who prefer the sunniest and driest conditions, July and August might be considered the optimal time for a visit. Both months offer peak sea temperatures ranging from 78.6°F (25.9°C) to 79.6°F (26.4°C) respectively. High temperatures remain comfortable between 78.8°F (26°C) and 79.3°F (26.3°C). Visitors will enjoy a notable reduction of rainfall during these months, with 0.35" (9mm) in July and 0.39" (10mm) in August respectively. The low number of rainfall days (each month recording 7.8 days and 7.9 days respectively) provide ample opportunity for outdoor exploration.
The worst time to visit Lahaina
With favourable weather conditions throughout the year, Lahaina doesn't have a detrimental time for visit. Yet, for visitors who prefer the driest conditions, March may not be considered the optimal time. This month receives the highest rainfall with 1.1" (28mm) spread over 13.4 days, the highest number of rainy days across the year.
Spring weather in Lahaina
Spring in Lahaina (March, April, May) translates into warm and reasonably sunny days. March sees the highest rainfall of the year, but numbers gradually reduce as the season progresses. High temperatures remain stable from 74.1°F (23.4°C) to 76.8°F (24.9°C), while low temperatures rise gently from 70.7°F (21.5°C) to 73°F (22.8°C). Such conditions combined with increasing sunshine hours - from 8.3 hours to 10.6 hours - make Spring a delightful season to experience in Lahaina.
Summer weather in Lahaina
The Lahainian summer (June, July, August) guarantees warmth and abundant sun. The temperatures show a slight uptick with highs ranging from 77.9°F (25.5°C) in June to 79.7°F (26.5°C) in August, while lows pitch between 74.8°F (23.8°C) and 76.5°F (24.7°C). Notably, the rainfall dips to its yearly minimum in July, reaching 0.35" (9mm) over 7.8 days, providing more clear days for visitors to enjoy.
Autumn weather in Lahaina
Autumn (September, October, November) brings continuation of pleasant weather in Lahaina. The temperatures remain comfortably high, from 79.5°F (26.4°C) in September to 77.5°F (25.3°C) in November, while the lows are fairly constant around 76.5°F (24.7°C). Rainfall increases slightly in this season, from 0.43" (11mm) in September to 0.47" (12mm) in November.
Winter weather in Lahaina
Winter is a warm affair in Lahaina (December, January, February), with high temperatures between 74.8°F (23.8°C) and 75.4°F (24.1°C) and lows between 71.6°F (22°C) and 72.7°F (22.6°C). Despite the term 'winter', the climate remains tropical, with December experiencing a slight increase in rainfall to 1.02" (26mm). Sunshine hours are slightly reduced, ranging from 6.7 hours to 8.3 hours, still providing ample daylight for activities.
Weather in January
January tends to lay the foundation for the year's weather pattern in Lahaina, Hawaii. Mild temperatures typically persist with occasional short spells of rainfall, a theme that recurs throughout the year. A slight rise in the relative humidity often accompanies these occasional showers. Weather in January »
Weather in February
February weather follows a similar pattern to January with subtle shifts. Although the average temperature remains consistent, rainfall tends to increase slightly. Wind speeds also rise, adding a slight bracing chill to the otherwise tropical warmth. Weather in February »
Weather in March
March bestows Lahaina with the year's first notable shift in weather. Rainfall sees a marginal spike, going up to 1.1" (28mm) for the month. The number of rainfall days increases to 13.4 compared to fewer days in previous months, marking it as one of the relatively more damp periods. Weather in March »
Weather in April
In April, a marvelous evolution takes place with the Lahaina weather stirring towards the drier side. This transition heralds a mild decrease in rainfall and an increase in sunshine hours. Additionally, the sea temperature begins to rise gradually, inviting beach enthusiasts to revel in their favorite activities. Weather in April »
Weather in May
May carries on the excellent work of its predecessor month, May sees heightened temperatures and drier conditions prevail overtaking the Lahaina skies. Daylight hours edge upwards, promising extensive sunshine, a delight for sun worshippers. Weather in May »
Weather in June
June is the harbinger of peak summer in Lahaina. Temperatures max out at 77.9°F (25.5°C), marking the beginning of the warmest period. Concurrently, the sea temperature also experiences a boost, rising to a comfortable 78.4°F (25.8°C). Weather in June »
Weather in July
July stands in the limelight as the driest month in Lahaina. The month is noted for its lowest rainfall of 0.35" (9mm), boasting a stark contrast to the rest of the year. Simultaneously, the July sea is at its warmest, encouraging a pleasant splash. Weather in July »
Weather in August
As the calendar turns, August ushers in the warmest period in Lahaina. The temperature delta from July is minimal, but sea temperatures touch a zenith and warm up to a cozy 79.6°F (26.4°C). Beachgoers would find it hard to resist the lure of the ocean during this time. Weather in August »
Weather in September
September is renowned for boasting the highest temperatures of the year in Lahaina, averaging at a top figure of 79.7°F (26.5°C). This heat harmonizes with the prolonged daylight hours, making the month ideal for sunbathers. Weather in September »
Weather in October
October weather in Lahaina is noted for its balance. The season's warm spell begins to subside, with temperatures taking a slight dip. However, sea temperatures remain inviting, still carrying summer's warmth. Rainfall sees a marginal spike, hinting at the approaching wet season. Weather in October »
Weather in November
November is a month of transitions in Lahaina. The prominent warm temperatures of previous months, as well as sea temperatures both taper off. Rainfall sees a slight increment, showing signs of the impending wet season. Sunshine hours decrease, following the seasonal swing into the colder months. Weather in November »
Weather in December
December in Lahaina is characterized by a significant shift in the weather. Temperatures drop further, making the weather a tad cooler. Rainfall replicates a yearly cycle by rising up to 1.02" (26mm), signifying a return to damp conditions. Weather in December »
[Resources]Frequently asked questions
What are the least humid months in Lahaina?
The months with the lowest humidity are January through March, September and November, with an average relative humidity of 75%.
How much does it rain in Lahaina?
Throughout the year, in Lahaina, Hawaii, there are 112.6 rainfall days, and 7.91" (201mm) of precipitation is accumulated.
What is the month with the lowest UV index in Lahaina?
January through June, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Lahaina, Hawaii.
What is the coldest time of year in Lahaina?
February, characterized by an average high temperature of 73.9°F (23.3°C) and a low temperature of 70.9°F (21.6°C), is generally the coldest month.
What is the rainiest month in Lahaina?
The month with the most rainfall in Lahaina, Hawaii, is March, when the rain falls for 13.4 days and typically aggregates up to 1.1" (28mm) of precipitation.
What month is the ocean coldest in Lahaina?
March is the month with the coldest seawater in Lahaina, with an average ocean temperature of 75.9°F (24.4°C).
When are the longest days in Lahaina?
The month with the longest days in Lahaina is June, with an average of 13h and 24min of daylight.
What month has the most sunshine in Lahaina?
With an average of 11.2h of sunshine, June has the most sunshine of the year.
What is the most humid month in Lahaina?
July is the most humid month, with an average relative humidity of 77%.
What is the driest month in Lahaina?
The month with the least rainfall is July, when the rain falls for 7.8 days and typically collects 0.35" (9mm) of precipitation.
What are the months with the highest UV index in Lahaina?
July through October, with an average maximum UV index of 7, are months with the highest UV index in Lahaina.
What are the warmest months in Lahaina?
Lahaina registers the average highest temperatures during September, with peaks of 79.7°F (26.5°C) and lows of 76.3°F (24.6°C).
When is the ocean warmest in Lahaina?
With an average ocean temperature of 80.2°F (26.8°C), September is the month with the warmest seawater in Lahaina, Hawaii.
What is the month with the shortest days in Lahaina?
The month with the shortest days in Lahaina, Hawaii, is December, with an average of 10h and 54min of daylight.
Is there Daylight Saving Time (DST) in Lahaina?
Lahaina, Hawaii, does not observe Daylight Saving Time (DST). HST timezone is used over the entire year.
What is the month with the least sunshine in Lahaina?
December has the least sunshine of the year in Lahaina, with an average of 6.7h of sunshine.
Average temperature
Lahaina, HI
The warmest month (with the highest average high temperature) is September (79.7°F).
The month with the lowest average high temperature is February (73.9°F).
The months with the highest average low temperature are August and October (76.5°F).
The coldest month (with the lowest average low temperature) is March (70.7°F).
Average pressure
Lahaina, HI
- Average pressure in January:
30"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
30.06"Hg - Average pressure in May:
30.04"Hg - Average pressure in June:
30.03"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
29.97"Hg - Average pressure in November:
30"Hg - Average pressure in December:
30"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed
Lahaina, HI
- Average wind speed in January:
10.6mph - Average wind speed in February:
11.7mph - Average wind speed in March:
12.6mph - Average wind speed in April:
12.4mph - Average wind speed in May:
11.7mph - Average wind speed in June:
13.8mph
- Average wind speed in July:
13.9mph - Average wind speed in August:
13.5mph - Average wind speed in September:
11.8mph - Average wind speed in October:
11.4mph - Average wind speed in November:
12.6mph - Average wind speed in December:
11.9mph
The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is January (10.6mph).
Average humidity
Lahaina, HI
The month with the highest relative humidity is July (77%).
The months with the lowest relative humidity are January, February, March, September and November (75%).
Average rainfall
Lahaina, HI
- Average rainfall in January:
0.67" - Average rainfall in February:
1.06" - Average rainfall in March:
1.1" - Average rainfall in April:
0.83" - Average rainfall in May:
0.55" - Average rainfall in June:
0.47"
- Average rainfall in July:
0.35" - Average rainfall in August:
0.39" - Average rainfall in September:
0.43" - Average rainfall in October:
0.55" - Average rainfall in November:
0.47" - Average rainfall in December:
1.02"
The wettest month (with the highest rainfall) is March (1.1").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days
Lahaina, HI
- Average rainfall days in January:
9.9 days - Average rainfall days in February:
10.3 days - Average rainfall days in March:
13.4 days - Average rainfall days in April:
9.8 days - Average rainfall days in May:
10.3 days - Average rainfall days in June:
7.8 days
- Average rainfall days in July:
7.8 days - Average rainfall days in August:
7.9 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
8.7 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
10.5 days
The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is November (7.7 days).
Average sea temperature
Lahaina, HI
The best month for swimming (with the highest average sea temperature) is September (80.2°F).
The coldest month (with the lowest average sea temperature) is March (76°F).
Average daylight / Average sunshine
Lahaina, HI
- Average daylight in January:
11h and 0min - Average daylight in February:
11h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 4min - Average daylight in May:
13h and 1min - Average daylight in June:
13h and 2min
- Average daylight in July:
13h and 2min - Average daylight in August:
12h and 5min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 4min - Average daylight in November:
11h and 1min - Average daylight in December:
10h and 5min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in January:
8h and 2min - Average sunshine in February:
8h and 3min - Average sunshine in March:
8h and 2min - Average sunshine in April:
8h and 5min - Average sunshine in May:
10h and 4min - Average sunshine in June:
11h and 1min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
9h and 1min - Average sunshine in September:
9h and 2min - Average sunshine in October:
8h and 1min - Average sunshine in November:
6h and 5min - Average sunshine in December:
6h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days
Lahaina, HI
- Average sunshine days in January:
17.9 days - Average sunshine days in February:
14 days - Average sunshine days in March:
12.6 days - Average sunshine days in April:
14.7 days - Average sunshine days in May:
17.2 days - Average sunshine days in June:
16.8 days
- Average sunshine days in July:
17.5 days - Average sunshine days in August:
17.7 days - Average sunshine days in September:
18.3 days - Average sunshine days in October:
18.4 days - Average sunshine days in November:
17.4 days - Average sunshine days in December:
16.8 days
The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is March (12.6 days).
Average UV index
Lahaina, HI
The months with the highest UV index are July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 6).
Average cloud cover
Lahaina, HI
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is September (Cloud cover 25).
Average visibility
Lahaina, HI
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Lahaina, Hawaii, USA
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