Climate and monthly weather forecastWaikapu, HI
Climate and monthly weather forecast
Weather in January
January, like December, in Waikapu, Hawaii, is another warm winter month, with an average temperature varying between 74.7°F (23.7°C) and 71.6°F (22°C). The commencement of January notes an average high-temperature of a still warm 74.7°F (23.7°C), exhibiting little difference from the previous month. Weather in January »Weather in February
February, the last month of the winter in Waikapu, is another warm month, with an average temperature varying between 73.9°F (23.3°C) and 70.7°F (21.5°C). Waikapu's coldest month, February, generally records average temperatures ranging from a high of 73.9°F (23.3°C) to a low of 70.7°F (21.5°C). Weather in February »Weather in March
The first month of the spring, March, is still a warm month in Waikapu, Hawaii, with an average temperature varying between 70.7°F (21.5°C) and 74.3°F (23.5°C). The ushering in of March brings an average high-temperature of a still warm 74.3°F (23.5°C), closely mirroring the 73.9°F (23.3°C) of February. Weather in March »Weather in April
April, like March, in Waikapu, Hawaii, is a moderately hot spring month, with an average temperature fluctuating between 72.1°F (22.3°C) and 75.6°F (24.2°C). Waikapu, Hawaii, observes an average high-temperature of a still moderately hot 75.6°F (24.2°C) in April, barely different from 74.3°F (23.5°C) in March. Weather in April »Weather in May
May, the last month of the spring in Waikapu, is another warm month, with an average temperature varying between 73.4°F (23°C) and 77°F (25°C). The average high-temperature for May is a still warm 77°F (25°C), closely aligning with the temperature of the preceding month. Weather in May »Weather in June
The first month of the summer, June, is still a warm month in Waikapu, Hawaii, with an average temperature varying between 74.7°F (23.7°C) and 77.9°F (25.5°C). June's weather records an average high-temperature of a still warm 77.9°F (25.5°C), showing little deviation from May. Weather in June »Weather in July
July, like June, in Waikapu, Hawaii, is a moderately hot summer month, with an average temperature varying between 78.8°F (26°C) and 75.6°F (24.2°C). July's commencement is accompanied by an average high-temperature of a still moderately hot 78.8°F (26°C), diverging marginally from June's 77.9°F (25.5°C). Weather in July »Weather in August
August, the last month of the summer in Waikapu, is also a moderately hot month, with an average temperature fluctuating between 79.5°F (26.4°C) and 76.3°F (24.6°C). In August, the average high-temperature registers at a still moderately hot 79.5°F (26.4°C), nearly identical to July's 78.8°F (26°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Waikapu, Hawaii, with an average temperature fluctuating between 76.1°F (24.5°C) and 79.9°F (26.6°C). Waikapu's warmest month, September, registers temperatures that range from a high of 79.9°F (26.6°C) to a low of 76.1°F (24.5°C). Weather in September »Weather in October
October, the same as September, is another warm autumn month in Waikapu, Hawaii, with temperature in the range of an average low of 76.5°F (24.7°C) and an average high of 79.3°F (26.3°C). The transition into October is marked with an average high-temperature of a still moderately hot 79.3°F (26.3°C), showing an insignificant shift from September's 79.9°F (26.6°C). Weather in October »Weather in November
The last month of the autumn, November, is also a moderately hot month in Waikapu, Hawaii, with an average temperature ranging between min 74.8°F (23.8°C) and max 77.7°F (25.4°C). As November unfolds, the average high-temperature reaches a still warm 77.7°F (25.4°C), hinting at a slight fluctuation from the previous month. Weather in November »Weather in December
December, the first month of the winter in Waikapu, is also a moderately hot month, with an average temperature ranging between min 72.9°F (22.7°C) and max 75.7°F (24.3°C). The onset of December brings an average high-temperature of a still moderately hot 75.7°F (24.3°C), nearly matching the November temperature. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Waikapu, HI
The warmest month (with the highest average high temperature) is September (79.9°F).
The month with the lowest average high temperature is February (73.9°F).
The month with the highest average low temperature is October (76.5°F).
The coldest months (with the lowest average low temperature) are February and March (70.7°F).
Average pressure
Waikapu, HI
- Average pressure in January:
30"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
30.05"Hg - Average pressure in May:
30.04"Hg - Average pressure in June:
30.03"Hg
- Average pressure in July:
30"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:
29.99"Hg
The month with the highest atmospheric pressure is April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed
Waikapu, HI
- Average wind speed in January:
10.4mph - Average wind speed in February:
11.4mph - Average wind speed in March:
12.4mph - Average wind speed in April:
12.6mph - Average wind speed in May:
11.7mph - Average wind speed in June:
13.6mph
- Average wind speed in July:
13.5mph - Average wind speed in August:
13.4mph - Average wind speed in September:
11.9mph - Average wind speed in October:
11.4mph - Average wind speed in November:
12.9mph - Average wind speed in December:
11.7mph
The windiest month (with the highest average wind speed) is June (13.6mph).
The calmest month (with the lowest average wind speed) is January (10.4mph).
Average humidity
Waikapu, HI
The months with the highest relative humidity are July and August (76%).
The months with the lowest relative humidity are January and February (74%).
Average rainfall
Waikapu, HI
- Average rainfall in January:
0.55" - Average rainfall in February:
0.75" - Average rainfall in March:
0.87" - Average rainfall in April:
0.63" - Average rainfall in May:
0.43" - Average rainfall in June:
0.2"
- Average rainfall in July:
0.39" - Average rainfall in August:
0.43" - Average rainfall in September:
0.39" - Average rainfall in October:
0.55" - Average rainfall in November:
0.51" - Average rainfall in December:
0.87"
The wettest months (with the highest rainfall) are March and December (0.87").
The driest month (with the least rainfall) is June (0.2").
Average rainfall days
Waikapu, HI
- Average rainfall days in January:
8.8 days - Average rainfall days in February:
8.5 days - Average rainfall days in March:
11.9 days - Average rainfall days in April:
8.1 days - Average rainfall days in May:
8.3 days - Average rainfall days in June:
6.6 days
- Average rainfall days in July:
8.5 days - Average rainfall days in August:
8.7 days - Average rainfall days in September:
8.1 days - Average rainfall days in October:
9 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
9.2 days
The month with the highest number of rainy days is March (11.9 days).
The month with the least rainy days is June (6.6 days).
Average daylight / Average sunshine
Waikapu, 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 36min - Average daylight in May:
13h and 6min - 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 42min - 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 36min - Average sunshine in February:
8h and 54min - Average sunshine in March:
8h and 42min - Average sunshine in April:
9h and 12min - Average sunshine in May:
11h and 0min - Average sunshine in June:
11h and 30min
- Average sunshine in July:
11h and 12min - Average sunshine in August:
9h and 12min - Average sunshine in September:
9h and 36min - Average sunshine in October:
8h and 12min - Average sunshine in November:
7h and 12min - Average sunshine in December:
7h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days
Waikapu, HI
- Average sunshine days in January:
19.3 days - Average sunshine days in February:
16.6 days - Average sunshine days in March:
15.2 days - Average sunshine days in April:
17.5 days - Average sunshine days in May:
18.5 days - Average sunshine days in June:
19.9 days
- Average sunshine days in July:
16 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
17.3 days - Average sunshine days in October:
17.1 days - Average sunshine days in November:
17.4 days - Average sunshine days in December:
17.7 days
The month with the most sunshine days is June (19.9 days).
The month with the least sunshine days is March (15.2 days).
Average UV index
Waikapu, 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
Waikapu, HI
The month with the most cloud cover is March (Cloud cover 30).
The months with the least cloud cover are June and September (Cloud cover 21).
Average visibility
Waikapu, 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).





