Climate and monthly weather forecastWaimanalo Beach, HI
Climate and monthly weather forecast
Weather in January
January, like December, in Waimanalo Beach, Hawaii, is another warm winter month, with an average temperature fluctuating between 71.8°F (22.1°C) and 75.2°F (24°C). Transitioning from December to January, Waimanalo Beach observes an average high-temperature of a still moderately hot 75.2°F (24°C), differing subtly from the previous month. Weather in January »Weather in February
The last month of the winter, February, is another warm month in Waimanalo Beach, Hawaii, with an average temperature ranging between min 70.5°F (21.4°C) and max 74.5°F (23.6°C). Waimanalo Beach's coldest weather arrives in February, when temperatures average a high of 74.5°F (23.6°C) and a low of 70.5°F (21.4°C). Weather in February »Weather in March
The first month of the spring, March, is still a warm month in Waimanalo Beach, Hawaii, with temperature in the range of an average low of 71.1°F (21.7°C) and an average high of 74.7°F (23.7°C). Waimanalo Beach's March reports an average high-temperature of a still warm 74.7°F (23.7°C), exhibiting a minor difference from February. Weather in March »Weather in April
April, like March, in Waimanalo Beach, Hawaii, is a moderately hot spring month, with an average temperature fluctuating between 76.1°F (24.5°C) and 73°F (22.8°C). As Waimanalo Beach, Hawaii, transitions into April, the average high-temperature stands at a still moderately hot 76.1°F (24.5°C), offering little variation from the preceding month. Weather in April »Weather in May
May, the last month of the spring in Waimanalo Beach, is another warm month, with an average temperature fluctuating between 74.1°F (23.4°C) and 77.7°F (25.4°C). Waimanalo Beach's weather, upon May's arrival, documents an average high-temperature of a still moderately hot 77.7°F (25.4°C), nearly identical to the prior month. Weather in May »Weather in June
June, the first month of the summer in Waimanalo Beach, is still a warm month, with an average temperature varying between 75.4°F (24.1°C) and 78.4°F (25.8°C). June's presence records an average high-temperature of a still warm 78.4°F (25.8°C), closely mirroring May's climate. Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Waimanalo Beach, Hawaii, with an average temperature varying between 79.7°F (26.5°C) and 76.6°F (24.8°C). Waimanalo Beach observes an average high-temperature of a still moderately hot 79.7°F (26.5°C) in July, barely different from 78.4°F (25.8°C) in June. Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Waimanalo Beach, Hawaii, with temperature in the range of an average low of 76.8°F (24.9°C) and an average high of 80.2°F (26.8°C). With the onset of August, a modest change to a still moderately hot 80.2°F (26.8°C) from July's 79.7°F (26.5°C) is noted in high-temperature. Weather in August »Weather in September
September, the first month of the autumn in Waimanalo Beach, is still a warm month, with an average temperature varying between 80.6°F (27°C) and 77°F (25°C). Waimanalo Beach's temperatures tend to reach their peak averages in September, with a high of 80.6°F (27°C) and a low of 77°F (25°C). The heat index for September is evaluated at 84.2°F (29°C). Weather in September »Weather in October
October, like September, in Waimanalo Beach, Hawaii, is another warm autumn month, with temperature in the range of an average high of 80.4°F (26.9°C) and an average low of 77°F (25°C). The advent of October observes an average high-temperature of a still warm 80.4°F (26.9°C), nearly identical to September's 80.6°F (27°C). Weather in October »Weather in November
The last month of the autumn, November, is also a moderately hot month in Waimanalo Beach, Hawaii, with an average temperature ranging between max 78.1°F (25.6°C) and min 75.4°F (24.1°C). Waimanalo Beach, Hawaii, marks the onset of November with an average high-temperature of a still moderately hot 78.1°F (25.6°C), subtly divergent from October's 80.4°F (26.9°C). Weather in November »Weather in December
The first month of the winter, December, is also a moderately hot month in Waimanalo Beach, Hawaii, with an average temperature ranging between max 75.9°F (24.4°C) and min 73.2°F (22.9°C). Waimanalo Beach, Hawaii, observes an average high-temperature of a still moderately hot 75.9°F (24.4°C) in December, barely different from 78.1°F (25.6°C) in November. Weather in December »Updated: Feb 12, 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 and November, with an average relative humidity of 74%, are the least humid months in Waimanalo Beach, Hawaii.
Throughout the year, there are 169.9 rainfall days, and 13.15" (334mm) of precipitation is accumulated.
The months with the lowest UV index in Waimanalo Beach are January through June, November and December, with an average maximum UV index of 6.
Waimanalo Beach's February weather, with an average high temperature of 74.5°F (23.6°C) and an average low temperature of 70.5°F (21.4°C), tends to be the coldest of the year.
The month with the most rainfall in Waimanalo Beach, Hawaii, is March, when the rain falls for 16.9 days and typically aggregates up to 1.69" (43mm) of precipitation.
March is the month with the coldest seawater in Waimanalo Beach, with an average ocean temperature of 75.7°F (24.3°C).
April, June through August and December, with an average relative humidity of 76%, are most humid months in Waimanalo Beach, Hawaii.
With an average of 13h and 24min of daylight, June has the longest days of the year.
June has the most sunshine of the year, with an average of 11.2h of sunshine.
The month with the least rainfall in Waimanalo Beach, Hawaii, is July, when the rain falls for 11.8 days and typically collects 0.55" (14mm) of precipitation.
The months with the highest UV index are July through October, with an average maximum UV index of 7.
September tends to be the warmest month, with temperatures averaging a daily high of 80.6°F (27°C) and a low of 77°F (25°C).
With an average ocean temperature of 80.4°F (26.9°C), September is the month with the warmest seawater.
With an average of 10h and 54min of daylight, December has the shortest days of the year.
Waimanalo Beach, Hawaii, does not utilize Daylight Saving Time (DST). HST timezone is used over the entire year.
With an average of 6.6h of sunshine, December has the least sunshine of the year.
Average temperature
Waimanalo Beach, HI
The warmest month (with the highest average high temperature) is September (80.6°F).
The month with the lowest average high temperature is February (74.5°F).
The months with the highest average low temperature are September and October (77°F).
The coldest month (with the lowest average low temperature) is February (70.5°F).
Average pressure
Waimanalo Beach, 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
Waimanalo Beach, HI
- Average wind speed in January:
10.7mph - Average wind speed in February:
11.9mph - Average wind speed in March:
13.1mph - Average wind speed in April:
12.8mph - Average wind speed in May:
11.6mph - Average wind speed in June:
13.8mph
- Average wind speed in July:
14.1mph - Average wind speed in August:
13.7mph - Average wind speed in September:
11.9mph - Average wind speed in October:
11.2mph - Average wind speed in November:
13mph - Average wind speed in December:
12mph
The windiest month (with the highest average wind speed) is July (14.1mph).
The calmest month (with the lowest average wind speed) is January (10.7mph).
Average humidity
Waimanalo Beach, HI
The months with the highest relative humidity are April, June, July, August and December (76%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall
Waimanalo Beach, HI
- Average rainfall in January:
1.14" - Average rainfall in February:
1.34" - Average rainfall in March:
1.69" - Average rainfall in April:
0.98" - Average rainfall in May:
0.98" - Average rainfall in June:
0.79"
- Average rainfall in July:
0.55" - Average rainfall in August:
0.75" - Average rainfall in September:
0.94" - Average rainfall in October:
1.46" - Average rainfall in November:
0.94" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is March (1.69").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days
Waimanalo Beach, HI
- Average rainfall days in January:
12.6 days - Average rainfall days in February:
14.7 days - Average rainfall days in March:
16.9 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
15.8 days - Average rainfall days in June:
11.3 days
- Average rainfall days in July:
11.8 days - Average rainfall days in August:
12.2 days - Average rainfall days in September:
13 days - Average rainfall days in October:
16.5 days - Average rainfall days in November:
14.4 days - Average rainfall days in December:
14.9 days
The month with the highest number of rainy days is March (16.9 days).
The month with the least rainy days is June (11.3 days).
Average sea temperature
Waimanalo Beach, HI
The best month for swimming (with the highest average sea temperature) is September (80.4°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).
Average daylight / Average sunshine
Waimanalo Beach, HI
- Average daylight in January:
11h and 0min - Average daylight in February:
11h and 30min - 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 24min
- Average daylight in July:
13h and 18min - Average daylight in August:
12h and 48min - 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 54min
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 42min - Average sunshine in February:
8h and 18min - Average sunshine in March:
8h and 24min - Average sunshine in April:
8h and 42min - Average sunshine in May:
10h and 48min - Average sunshine in June:
11h and 12min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
9h and 12min - Average sunshine in September:
9h and 18min - Average sunshine in October:
8h and 30min - Average sunshine in November:
6h and 48min - Average sunshine in December:
6h and 36min
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 36min).
Average sunshine days
Waimanalo Beach, HI
- Average sunshine days in January:
12.8 days - Average sunshine days in February:
8.2 days - Average sunshine days in March:
6.6 days - Average sunshine days in April:
7.3 days - Average sunshine days in May:
9.3 days - Average sunshine days in June:
13.6 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
12.8 days - Average sunshine days in September:
11 days - Average sunshine days in October:
7 days - Average sunshine days in November:
6.6 days - Average sunshine days in December:
8.1 days
The month with the most sunshine days is June (13.6 days).
The months with the least sunshine days are March and November (6.6 days).
Average UV index
Waimanalo Beach, 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
Waimanalo Beach, HI
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is September (Cloud cover 27).
Average visibility
Waimanalo Beach, 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).
