Climate and monthly weather forecastWaialua, HI
Climate and monthly weather forecast
Weather in January
January, like December, in Waialua, Hawaii, is another warm winter month, with temperature in the range of an average low of 70°F (21.1°C) and an average high of 75.9°F (24.4°C). The shift to January signals an average high-temperature of a still moderately hot 75.9°F (24.4°C), subtly varied from December's 76.6°F (24.8°C). Weather in January »Weather in February
February, the last month of the winter in Waialua, is another warm month, with temperature in the range of an average high of 75°F (23.9°C) and an average low of 68.5°F (20.3°C). February, with average temperatures reaching a high of 75°F (23.9°C) and a low of 68.5°F (20.3°C), is the coldest month. Weather in February »Weather in March
The first month of the spring, March, is still a warm month in Waialua, Hawaii, with temperature in the range of an average low of 69.3°F (20.7°C) and an average high of 75.2°F (24°C). Waialua's March showcases an average high-temperature of a still warm 75.2°F (24°C), hardly distinct from February's 75°F (23.9°C). Weather in March »Weather in April
April, the same as March, is a moderately hot spring month in Waialua, Hawaii, with temperature in the range of an average high of 76.8°F (24.9°C) and an average low of 71.2°F (21.8°C). Waialua's average high-temperature in April is a still warm 76.8°F (24.9°C), marking an insignificant difference from the 75.2°F (24°C) of March. Weather in April »Weather in May
The last month of the spring, May, is also a moderately hot month in Waialua, Hawaii, with an average temperature fluctuating between 78.6°F (25.9°C) and 72.9°F (22.7°C). The initiation of May records an average high-temperature of a still warm 78.6°F (25.9°C), displaying a near consistency with the previous month. Weather in May »Weather in June
June, the first month of the summer in Waialua, is still a warm month, with an average temperature ranging between min 74.1°F (23.4°C) and max 79.9°F (26.6°C). Waialua's average high-temperature in June is a still warm 79.9°F (26.6°C), indicating a subtle variation from May. Weather in June »Weather in July
July, like June, in Waialua, Hawaii, is another warm summer month, with an average temperature ranging between max 80.8°F (27.1°C) and min 75.2°F (24°C). Waialua records a slight change with July's average high-temperatures adjusting to a still warm 80.8°F (27.1°C) from June's 79.9°F (26.6°C). Weather in July »Weather in August
August, the last month of the summer in Waialua, is another warm month, with an average temperature varying between 81.5°F (27.5°C) and 75.7°F (24.3°C). Waialua commences August with an average high-temperature of a still warm 81.5°F (27.5°C), maintaining a close resemblance to the previous month. Weather in August »Weather in September
September, the first month of the autumn in Waialua, is still a warm month, with temperature in the range of an average high of 81.7°F (27.6°C) and an average low of 75.7°F (24.3°C). September, known for its average high temperature of 81.7°F (27.6°C) and an average low temperature of 75.7°F (24.3°C), is the warmest month. September's average heat index is estimated at a tropical 86°F (30°C). Weather in September »Weather in October
October, like September, in Waialua, Hawaii, is a moderately hot autumn month, with an average temperature ranging between min 75.4°F (24.1°C) and max 81.1°F (27.3°C). The arrival of October coincides with an average high-temperature of a still moderately hot 81.1°F (27.3°C), indicating a minimal shift from September's 81.7°F (27.6°C). Weather in October »Weather in November
The last month of the autumn, November, is also a moderately hot month in Waialua, Hawaii, with temperature in the range of an average low of 73.6°F (23.1°C) and an average high of 78.8°F (26°C). November registers an average high-temperature of a still warm 78.8°F (26°C), slightly varied from October's 81.1°F (27.3°C). Weather in November »Weather in December
The first month of the winter, December, is also a moderately hot month in Waialua, Hawaii, with an average temperature fluctuating between 76.6°F (24.8°C) and 71.2°F (21.8°C). December's advent presents an average high-temperature of a still warm 76.6°F (24.8°C), indicating a slight variation from the conditions of the previous month. Weather in December »Updated: Jul 6, 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
In Waialua, during the entire year, the rain falls for 190.2 days and collects up to 11.65" (296mm) of precipitation.
January through June, August, October through December, with an average maximum UV index of 6, are months with the lowest UV index.
Waialua witnesses the coldest weather in February, with temperatures averaging a high of 75°F (23.9°C) and a low of 68.5°F (20.3°C).
February and December, with an average relative humidity of 76%, are most humid months.
The wettest months are February and October, with an average 1.34" (34mm) of rainfall.
The month with the coldest seawater is March, with an average ocean temperature of 75.2°F (24°C).
The months with the lowest humidity are May and September, with an average relative humidity of 74%.
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 9.9h of sunshine.
The month with the least rainfall is July, when the rain falls for 16.6 days and typically collects 0.63" (16mm) of precipitation.
The months with the highest UV index are July and September, with an average maximum UV index of 7.
In Waialua, September registers the highest temperatures, averaging 81.7°F (27.6°C) at the peak and 75.7°F (24.3°C) at the lowest.
September is the month with the warmest seawater, with an average ocean temperature of 80.2°F (26.8°C).
The month with the least sunshine is November, with an average of 6.2h of sunshine.
With an average of 10h and 48min of daylight, December has the shortest days of the year.
Waialua does not observe Daylight Saving Time (DST). HST timezone is used over the entire year.
Average temperature
Waialua, HI
The warmest month (with the highest average high temperature) is September (81.7°F).
The month with the lowest average high temperature is February (75°F).
The months with the highest average low temperature are August and September (75.7°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).
Average pressure
Waialua, 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:
29.99"Hg - Average pressure in September:
29.98"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 month with the lowest atmospheric pressure is October (29.97"Hg).
Average wind speed
Waialua, HI
- Average wind speed in January:
9mph - Average wind speed in February:
10.1mph - Average wind speed in March:
11.2mph - Average wind speed in April:
10.9mph - Average wind speed in May:
9.7mph - Average wind speed in June:
11.5mph
- Average wind speed in July:
11.6mph - Average wind speed in August:
10.9mph - Average wind speed in September:
9.8mph - Average wind speed in October:
9.1mph - Average wind speed in November:
10.9mph - Average wind speed in December:
9.7mph
The windiest month (with the highest average wind speed) is July (11.6mph).
The calmest month (with the lowest average wind speed) is January (9mph).
Average humidity
Waialua, HI
The months with the highest relative humidity are February and December (76%).
The months with the lowest relative humidity are May and September (74%).
Average rainfall
Waialua, HI
- Average rainfall in January:
0.79" - Average rainfall in February:
1.34" - Average rainfall in March:
1.22" - Average rainfall in April:
0.87" - Average rainfall in May:
1.02" - Average rainfall in June:
0.79"
- Average rainfall in July:
0.63" - Average rainfall in August:
0.79" - Average rainfall in September:
0.98" - Average rainfall in October:
1.34" - Average rainfall in November:
0.83" - Average rainfall in December:
1.06"
The wettest months (with the highest rainfall) are February and October (1.34").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days
Waialua, HI
- Average rainfall days in January:
12.5 days - Average rainfall days in February:
14.3 days - Average rainfall days in March:
17.7 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
17.2 days - Average rainfall days in June:
15.9 days
- Average rainfall days in July:
16.6 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
17.4 days - Average rainfall days in October:
16.4 days - Average rainfall days in November:
14.6 days - Average rainfall days in December:
14.5 days
The month with the highest number of rainy days is March (17.7 days).
The month with the least rainy days is January (12.5 days).
Average sea temperature
Waialua, 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 (75.2°F).
Average daylight / Average sunshine
Waialua, 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 48min
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 48min).
- Average sunshine in January:
8h and 12min - Average sunshine in February:
7h and 48min - Average sunshine in March:
7h and 36min - Average sunshine in April:
7h and 48min - Average sunshine in May:
9h and 42min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
9h and 12min - Average sunshine in August:
8h and 12min - Average sunshine in September:
8h and 36min - Average sunshine in October:
7h and 48min - Average sunshine in November:
6h and 12min - Average sunshine in December:
6h and 18min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days
Waialua, HI
- Average sunshine days in January:
12.9 days - Average sunshine days in February:
10.3 days - Average sunshine days in March:
7.9 days - Average sunshine days in April:
6.8 days - Average sunshine days in May:
8.5 days - Average sunshine days in June:
8.5 days
- Average sunshine days in July:
6.8 days - Average sunshine days in August:
7.2 days - Average sunshine days in September:
6.5 days - Average sunshine days in October:
8.3 days - Average sunshine days in November:
9.7 days - Average sunshine days in December:
10.4 days
The month with the most sunshine days is January (12.9 days).
The month with the least sunshine days is September (6.5 days).
Average UV index
Waialua, HI
The months with the highest UV index are July and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, August, October, November and December (UV index 6).
Average cloud cover
Waialua, HI
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are January and September (Cloud cover 37).
Average visibility
Waialua, 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).
