Climate and monthly weather forecastKekaha, HI
Climate and monthly weather forecast
The climate of Kekaha
Falling under the Köppen climate classification As, Kekaha, Hawaii, is characterized by a tropical wet and dry or savanna climate. Due to its geographical position, this area experiences a 'summer' dry season. The locale's overall weather is relatively stable throughout the entire year, providing warm temperatures and high humidity levels.Average high temperatures fluctuate mildly, ranging from 73.4°F (23°C) in February and March to 80.8°F (27.1°C) in August. The low averages indicate a similar pattern, with the coolest months being February and March at 69.1°F (20.6°C) and 69.4°F (20.8°C) respectively, and the warmest month being September with a low average of 76.3°F (24.6°C). This consistent temperature range corroborates the tropical climate type of Kekaha.
When assessing precipitation, the rain pattern is fairly consistent with little variation between months. The wettest month is March with average rainfall of 2.2" (56mm) while the driest month is July with 0.63" (16mm) of rainfall. The monthly number of rainy days is also relatively stable, from 11.5 days in January to 16.8 days in March.
The sea temperature mimics a similar pattern to the air temperature, ranging from 75.4°F (24.1°C) in March to 80.5°F (26.9°C) in September. The levels of daily sunshine hours peak in June, reaching up to 13.5 hours, while the shortest days are observed in December with approximately 10.8 hours of daylight.
Unique weather conditions include the March peak in rainfall. While rainfall is relatively stable throughout the year, March experiences the highest volume. The UV index also fluctuates during the year, peaking at 7 from July to September, indicating that sun protection is essential during these months.
The best time to visit Kekaha
The best time to visit Kekaha is during spring and summer when the rainfall is relatively low, ranging from 0.63" (16mm) to 1.73" (44mm), and the highest sea temperatures, which rise up to 80.5°F (26.9°C) in September. In this period, visitors can also enjoy long hours of daily sunshine, ranging from 11 hours in April to a staggering 13.5 hours in June.The worst time to visit Kekaha
The least favorable time to visit Kekaha would likely be during the winter months when rainfall is slightly higher, with December seeing 1.57" (40mm) of rainfall. Additionally, daylight hours are shorter, ranging from 11.1 hours in November to just 10.8 in December, which can limit outdoor activities.Spring weather in Kekaha
In spring, Kekaha's weather conditions manifest in slightly lower temperatures, with highs between 73.4°F (23°C) and 77.4°F (25.2°C) and lows ranging from 69.1°F (20.6°C) to 72.7°F (22.6°C). From March to May, rainfall can reach 2.2" (56mm) per month and the number of rainy days is moderate, from 15.1 to 16.8. Sea temperatures also see a slight increase, from 75.4°F (24.1°C) in March to 78.1°F (25.6°C) in May.Summer weather in Kekaha
Kekaha's summer is warm, with high temperatures ranging from 77.4°F (25.2°C) in May to 80.1°F (26.7°C) in July. The low temperatures show a similar trend, varying from 72.7°F (22.6°C) to 75.7°F (24.3°C). The rainfall during this season declines to the low of 0.63" (16mm) in July. Sea temperatures escalate, reaching 79.3°F (26.3°C) in June.Autumn weather in Kekaha
The Kekaha autumn weather resembles a consistent pattern, with high temperatures of around 80°F (26.7°C) and lows in the mid-70s°F. Rainfall increases compared to summer, reaching 1.57" (40mm) in November, while sea temperatures start to decrease, falling from 80.5°F (26.9°C) in September to 78.7°F (25.9°C) in November.Winter weather in Kekaha
In winter, the weather in Kekaha still remains warm. High temperatures range from 79.7°F (26.5°C) in October to 75.7°F (24.3°C) in December, while low temperatures fluctuate from 76.1°F (24.5°C) to 72.1°F (22.3°C). Kekaha's winter season sees an increase in rainfall, with the volume rising from 1.34" (34mm) in October to 1.57" (40mm) in December. The lower sea temperatures, from 78.7°F (25.9°C) in November to 76.8°F (24.9°C) in December, mark the beginning of a cooler period.Weather in January
The start of the year in Kekaha, Hawaii is generally marked by a mild and inviting climate. There is moderate rainfall with 11.5 days on average experiencing precipitation. The sea remains at a pleasant temperature of 76.8°F (24.9°C), encouraging beach activities. Weather in January »Weather in February
Shifting into the second month of the year, Kekaha witnesses a small decrease in sea temperature and a slight increase in precipitation. February has the second-highest average wind speed throughout the year at 10.4 MPH. Relative humidity hovers around 75%, providing a slightly damp feel to the atmosphere. Weather in February »Weather in March
In March, the trend of moderate climate continues in Kekaha. Unusually, March features the highest average rainfall for the year, with rainfall distributed across 16.8 days. As days gradually lengthen, daylight shines for 12 hours, inviting people to enjoy longer in outdoor activities. Weather in March »Weather in April
April brings a bit of change to the weather in Kekaha. The lowest monthly rainfall descends in this month with a record of 0.98" (25mm). Additionally, daylight continues to increase to a sizable average of 12.7 hours, promoting prolonged enjoyment of outdoor events and beachside relaxation. Weather in April »Weather in May
May marks a notable increase in temperatures as Kekaha transitions further into the warmer months. The sea temperature begins to rise, reaching a comfortable temperature of 78.1°F (25.6°C). On land, the increased daylight of 13.2 hours offers ample time for sightseeing, beach strolls and other outdoor activities. Weather in May »Weather in June
As summer sets in June, Kekaha indulges in the warmest sea temperatures of the year. While the sea temperature slightly rises from May, the rest of the weather conditions remain fairly constant. The highest average amount of sunshine in a day reaches June, meaning people can enjoy the Hawaiian sun for longer durations. Weather in June »Weather in July
July presents a continuation of June’s consistent climate, except for a peak in UV index. It records a UV index of 7 which demands precautionary measures while spending long hours outdoors. However, the conditions are comfortable enough to partake in Kekaha's vibrant summer. Weather in July »Weather in August
August ties with July and September for the highest regular temperatures. An interesting change comes with the rainfall which increases slightly from July but remains relatively low. The sea maintains its warm temperature, keeping water activities enjoyable. Weather in August »Weather in September
In September, Kekaha experiences a peak in temperatures with an average high of 80.4°F (26.9°C). However, rainfall and cloud coverage remain consistent with a slight increase compared to the previous month. Despite these damp conditions, the sea temperature rises to a peak of 80.5°F (26.9°C). Weather in September »Weather in October
October brings a cool shift to Kekaha’s tropical climate with a slight drop in temperature from September to 79.7°F (26.5°C). Despite the decrease in temperature, the sea continues to provide warm, enticing waters. Furthermore, the reduced cloud cover promotes clear skies, offering epic views of the sunrise and sunset. Weather in October »Weather in November
November arrives with a more noticeable drop in temperature. Interestingly, this month ties with February for the highest average amount of rainfall, recording 1.57" (40mm). Despite the increase in rainfall, the relatively warm sea allows for water-based activities. Weather in November »Weather in December
Closing the year, December brings back the mild and inviting climate experienced at the start of the year in Kekaha, Hawaii. While there is a decrease in sea temperature from November, a relative increase in pressure is noted. Weather in December »Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January, May, September and November, with an average relative humidity of 74%, are the least humid months in Kekaha.
In Kekaha, Hawaii, during the entire year, the rain falls for 172.7 days and collects up to 15.75" (400mm) of precipitation.
The months with the lowest UV index in Kekaha are January through June, October through December, with an average maximum UV index of 6.
February and March represent the coldest period in Kekaha, Hawaii, with an average high-temperature of 73.4°F (23°C).
The months with the highest humidity in Kekaha, Hawaii, are February through April, June through August, October and December, with an average relative humidity of 75%.
The month with the most rainfall in Kekaha, Hawaii, is March, when the rain falls for 16.8 days and typically aggregates up to 2.2" (56mm) of precipitation.
With an average ocean temperature of 75.4°F (24.1°C), March is the month with the coldest seawater.
June has the longest days of the year, with an average of 13h and 30min of daylight.
With an average of 11h of sunshine, June has the most sunshine of the year in Kekaha, Hawaii.
July is the month with the least rainfall in Kekaha, Hawaii. Rain falls for 13.5 days and accumulates 0.63" (16mm) of precipitation.
The months with the highest UV index are July through September, with an average maximum UV index of 7.
In Kekaha, Hawaii, the average temperatures in August are the highest, with a peak at 80.8°F (27.1°C) and a low of 76.1°F (24.5°C).
With an average ocean temperature of 80.4°F (26.9°C), September is the month with the warmest seawater in Kekaha, Hawaii.
With an average of 7.1h of sunshine, November has the least sunshine of the year in Kekaha, Hawaii.
The month with the shortest days in Kekaha, Hawaii, is December, with an average of 10h and 48min of daylight.
Kekaha, Hawaii, does not observe Daylight Saving Time (DST). HST timezone is used throughout the entire year.
Average temperature
Kekaha, HI
The warmest month (with the highest average high temperature) is August (80.8°F).
The months with the lowest average high temperature are February and March (73.4°F).
The month with the highest average low temperature is September (76.3°F).
The coldest month (with the lowest average low temperature) is February (69.1°F).
Average pressure
Kekaha, HI
- Average pressure in January:
30.01"Hg - Average pressure in February:
30.02"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
30.06"Hg - Average pressure in May:
30.05"Hg - Average pressure in June:
30.04"Hg
- Average pressure in July:
30.02"Hg - Average pressure in August:
30"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.01"Hg - Average pressure in December:
30.01"Hg
The months with the highest atmospheric pressure are March and April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.98"Hg).
Average wind speed
Kekaha, HI
- Average wind speed in January:
9.1mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.7mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.6mph - Average wind speed in June:
9.7mph
- Average wind speed in July:
9.7mph - Average wind speed in August:
9.6mph - Average wind speed in September:
9.1mph - Average wind speed in October:
8.8mph - Average wind speed in November:
10.5mph - Average wind speed in December:
9.8mph
The windiest month (with the highest average wind speed) is March (10.7mph).
The calmest month (with the lowest average wind speed) is May (8.6mph).
Average humidity
Kekaha, HI
The months with the highest relative humidity are February, March, April, June, July, August, October and December (75%).
The months with the lowest relative humidity are January, May, September and November (74%).
Average rainfall
Kekaha, HI
- Average rainfall in January:
1.26" - Average rainfall in February:
1.57" - Average rainfall in March:
2.2" - Average rainfall in April:
0.98" - Average rainfall in May:
1.3" - Average rainfall in June:
1.73"
- Average rainfall in July:
0.63" - Average rainfall in August:
0.71" - Average rainfall in September:
0.87" - Average rainfall in October:
1.34" - Average rainfall in November:
1.57" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is March (2.2").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days
Kekaha, HI
- Average rainfall days in January:
11.5 days - Average rainfall days in February:
13.7 days - Average rainfall days in March:
16.8 days - Average rainfall days in April:
15.1 days - Average rainfall days in May:
15.8 days - Average rainfall days in June:
12.8 days
- Average rainfall days in July:
13.5 days - Average rainfall days in August:
13.9 days - Average rainfall days in September:
13.3 days - Average rainfall days in October:
15.7 days - Average rainfall days in November:
16 days - Average rainfall days in December:
14.6 days
The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is January (11.5 days).
Average sea temperature
Kekaha, HI
The best month for swimming (with the highest average sea temperature) is September (80.5°F).
The coldest month (with the lowest average sea temperature) is March (75.4°F).
Average daylight / Average sunshine
Kekaha, HI
- Average daylight in January:
11h and 0min - Average daylight in February:
11h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
12h and 42min - Average daylight in May:
13h and 12min - Average daylight in June:
13h and 30min
- Average daylight in July:
13h and 18min - Average daylight in August:
12h and 54min - Average daylight in September:
12h and 18min - Average daylight in October:
11h and 36min - Average daylight in November:
11h and 6min - Average daylight in December:
10h and 48min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in January:
8h and 54min - Average sunshine in February:
8h and 30min - Average sunshine in March:
8h and 36min - Average sunshine in April:
8h and 36min - Average sunshine in May:
10h and 0min - Average sunshine in June:
11h and 0min
- Average sunshine in July:
9h and 12min - Average sunshine in August:
9h and 12min - Average sunshine in September:
9h and 18min - Average sunshine in October:
9h and 18min - Average sunshine in November:
7h and 6min - Average sunshine in December:
7h and 30min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is November (Average sunshine: 7h and 6min).
Average sunshine days
Kekaha, HI
- Average sunshine days in January:
13.8 days - Average sunshine days in February:
9 days - Average sunshine days in March:
7.7 days - Average sunshine days in April:
8.4 days - Average sunshine days in May:
9.9 days - Average sunshine days in June:
11.6 days
- Average sunshine days in July:
11.2 days - Average sunshine days in August:
11.2 days - Average sunshine days in September:
11 days - Average sunshine days in October:
8.5 days - Average sunshine days in November:
6.7 days - Average sunshine days in December:
9.5 days
The month with the most sunshine days is January (13.8 days).
The month with the least sunshine days is November (6.7 days).
Average UV index
Kekaha, HI
The months with the highest UV index are July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, October, November and December (UV index 6).
Average cloud cover
Kekaha, HI
The month with the most cloud cover is March (Cloud cover 35).
The months with the least cloud cover are January and September (Cloud cover 28).
Average visibility
Kekaha, 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).
