Climate and monthly weather forecastWaimanalo, HI
Climate and monthly weather forecast
Weather in January
January, the same as December, is a moderately hot winter month in Waimanalo, Hawaii, with an average temperature ranging between max 75.2°F (24°C) and min 71.8°F (22.1°C). January begins with an average high-temperature of a still warm 75.2°F (24°C), reflecting close similarity to the preceding month. Weather in January »Weather in February
The last month of the winter, February, is also a moderately hot month in Waimanalo, Hawaii, with an average temperature ranging between min 70.5°F (21.4°C) and max 74.5°F (23.6°C). Waimanalo's temperature records reveal February as the coldest month, marked by average highs of 74.5°F (23.6°C) and lows of 70.5°F (21.4°C). Weather in February »Weather in March
March, the first month of the spring in Waimanalo, is also a moderately hot month, 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). The shift into March reveals an average high-temperature of a still warm 74.7°F (23.7°C), closely mirroring February's climate. Weather in March »Weather in April
April, like March, in Waimanalo, Hawaii, is another warm spring month, with an average temperature fluctuating between 73°F (22.8°C) and 76.1°F (24.5°C). With April's advent, Waimanalo sees an average high-temperature of a still warm 76.1°F (24.5°C), subtly shifted from March's 74.7°F (23.7°C). Weather in April »Weather in May
The last month of the spring, May, is another warm month in Waimanalo, Hawaii, with an average temperature ranging between min 74.1°F (23.4°C) and max 77.7°F (25.4°C). May's average high-temperature is a still warm 77.7°F (25.4°C), maintaining a close comparison with April's 76.1°F (24.5°C). Weather in May »Weather in June
The first month of the summer, June, is also a moderately hot month in Waimanalo, Hawaii, with an average temperature varying between 75.4°F (24.1°C) and 78.4°F (25.8°C). Waimanalo records an average high-temperature of a still warm 78.4°F (25.8°C) as June arrives, nearly mirroring the previous month's climate. Weather in June »Weather in July
July, the same as June, is another warm summer month in Waimanalo, Hawaii, with an average temperature ranging between min 76.6°F (24.8°C) and max 79.7°F (26.5°C). As July unfolds, the average high-temperature reaches a still moderately hot 79.7°F (26.5°C), hinting at a slight fluctuation from the previous month. Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Waimanalo, Hawaii, with an average temperature varying between 80.2°F (26.8°C) and 76.8°F (24.9°C). Waimanalo, Hawaii, experiences an average high-temperature of a still moderately hot 80.2°F (26.8°C) in August, marking an insignificant shift from 79.7°F (26.5°C) in July. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Waimanalo, Hawaii, with an average temperature varying between 80.6°F (27°C) and 77°F (25°C). September, recognised by an average high temperature of 80.6°F (27°C) and a low of 77°F (25°C), is Waimanalo's warmest month. In September, the heat index is appraised at 84.2°F (29°C). Weather in September »Weather in October
October, the same as September, is another warm autumn month in Waimanalo, Hawaii, with an average temperature ranging between max 80.4°F (26.9°C) and min 77°F (25°C). Waimanalo, Hawaii, indicates an average high-temperature of a still warm 80.4°F (26.9°C) in October, showing minor variation from September's 80.6°F (27°C). Weather in October »Weather in November
November, the last month of the autumn in Waimanalo, is also a moderately hot month, with an average temperature fluctuating between 75.4°F (24.1°C) and 78.1°F (25.6°C). November ushers in an average high-temperature of a still moderately hot 78.1°F (25.6°C), aligning closely with the preceding month. Weather in November »Weather in December
The first month of the winter, December, is still a warm month in Waimanalo, Hawaii, with an average temperature ranging between min 73.2°F (22.9°C) and max 75.9°F (24.4°C). December records an average high-temperature of a still warm 75.9°F (24.4°C), indicating a minor variation from the preceding month. Weather in December »Updated: Jun 16, 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.
Throughout the year, there are 169.9 rainfall days, and 13.15" (334mm) of precipitation is accumulated.
The months with the lowest UV index are January through June, November and December, with an average maximum UV index of 6.
Waimanalo's February weather, marked by an average high temperature of 74.5°F (23.6°C) and an average low temperature of 70.5°F (21.4°C), is the coldest in the year.
March is the month with the most rainfall. Rain falls for 16.9 days and accumulates 1.69" (43mm) of precipitation.
April, June through August and December, with an average relative humidity of 76%, are most humid months.
With an average of 13h and 24min of daylight, June has the longest days of the year.
With an average of 11.2h of sunshine, June has the most sunshine of the year in Waimanalo.
July is the month with the least rainfall in Waimanalo. Rain falls for 11.8 days and accumulates 0.55" (14mm) of precipitation.
The months with the highest UV index are July through October, with an average maximum UV index of 7.
With an average high-temperature of 80.6°F (27°C) and an average low-temperature of 77°F (25°C), September is the warmest month.
December has the shortest days of the year, with an average of 10h and 54min of daylight.
Waimanalo does not observe Daylight Saving Time (DST). HST timezone is used over the entire year.
December has the least sunshine of the year, with an average of 6.6h of sunshine.
Average temperature
Waimanalo, 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, 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, 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, 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, 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, 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 daylight / Average sunshine
Waimanalo, 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, 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, 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, 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, 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).
