Annual mean 24°C · wettest around December · prevailing wind NE
Warmest
28.8 °C
Coldest
24.6 °C
Wettest
7%
Windiest
8.3 m/s
Prevailing
NE
7.0 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Wailuku over the whole year is 24°C. September is the hottest month, with highs of about 29°C; February is the coldest, with lows of about 20°C. Wailuku has no sharply defined rainy season: the chance of rain on a given day runs from 1% in June, the driest month, to 9% in December, the wettest. Winds in Wailuku are highest in July, averaging 6.2 m/s (22 km/h), and lightest in January, at 4.3 m/s (15 km/h). The prevailing wind is from the NE. The clearest skies in Wailuku come in November, when the sky is typically 38% covered; February is the cloudiest month, at 47%.
Month by month Wailuku climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
25°C
20°C
25°C
6%
41%
4.3 m/s
74
55
29
February
25°C
20°C
24°C
8%
47%
4.8 m/s
79
41
40
March
25°C
20°C
24°C
6%
46%
4.9 m/s
73
46
34
April
26°C
22°C
25°C
6%
45%
5.3 m/s
73
52
26
May
27°C
22°C
26°C
4%
45%
5.4 m/s
68
59
20
June
28°C
24°C
27°C
1%
42%
5.9 m/s
60
66
12
July
28°C
24°C
27°C
3%
42%
6.2 m/s
50
67
8
August
28°C
24°C
28°C
4%
44%
5.8 m/s
42
70
5
September
29°C
24°C
29°C
3%
39%
5.2 m/s
34
74
3
October
28°C
23°C
28°C
4%
39%
4.6 m/s
37
73
6
November
27°C
22°C
27°C
5%
38%
5.0 m/s
56
64
17
December
26°C
21°C
25°C
9%
42%
4.8 m/s
68
53
28
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Wailuku weather by season
Year round, Wailuku has days of about 25°C at their warmest in February, its coolest month, and 29°C in September, its warmest; the coolest hours of the day run from 20°C to 24°C through the year, and the average temperature over the year is 24°C around the clock. Rain is most likely around December and least likely around June. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Wailuku weather in winterDecember to February
High 25°CLow 20°CRain 8%
Winter in Wailuku has typical daily highs of about 25°C and lows of about 20°C, with a 8% chance of rain on a given day.
Wailuku weather in springMarch to May
High 26°CLow 21°CRain 5%
Spring in Wailuku has typical daily highs of about 26°C and lows of about 21°C, with a 5% chance of rain on a given day.
Wailuku weather in summerJune to August
High 28°CLow 24°CRain 3%
Summer in Wailuku has typical daily highs of about 28°C and lows of about 24°C, with a 3% chance of rain on a given day.
Wailuku weather in autumnSeptember to November
High 28°CLow 23°CRain 4%
Autumn in Wailuku has typical daily highs of about 28°C and lows of about 23°C, with a 4% chance of rain on a given day.
When is the rainy season in Wailuku?
Wailuku has no sharply defined rainy season: the chance of rain on a given day runs from 1% in June, the driest month, to 9% in December, the wettest.
What time of year is Wailuku windiest?
Winds in Wailuku are highest in July, averaging 6.2 m/s (22 km/h), and lightest in January, at 4.3 m/s (15 km/h). The prevailing wind is from the NE.
What is the average temperature in Wailuku year round?
The average temperature in Wailuku over the whole year is 24°C. September is the hottest month, with highs of about 29°C; February is the coldest, with lows of about 20°C.