Kailua, Oahu climate guide

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Temperature in Kailua, Oahu (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
26°C maximum daytime temperature in January in Kailua, Oahu26
26°C maximum daytime temperature in February in Kailua, Oahu26
27°C maximum daytime temperature in March in Kailua, Oahu27
27°C maximum daytime temperature in April in Kailua, Oahu27
28°C maximum daytime temperature in May in Kailua, Oahu28
29°C maximum daytime temperature in June in Kailua, Oahu29
30°C maximum daytime temperature in July in Kailua, Oahu30
31°C maximum daytime temperature in August in Kailua, Oahu31
30°C maximum daytime temperature in September in Kailua, Oahu30
29°C maximum daytime temperature in October in Kailua, Oahu29
28°C maximum daytime temperature in November in Kailua, Oahu28
27°C maximum daytime temperature in December in Kailua, Oahu27
Min temperature (night-time)
18°C minimum night-time temperature in January in Kailua, Oahu18
18°C minimum night-time temperature in February in Kailua, Oahu18
19°C minimum night-time temperature in March in Kailua, Oahu19
20°C minimum night-time temperature in April in Kailua, Oahu20
20°C minimum night-time temperature in May in Kailua, Oahu20
21°C minimum night-time temperature in June in Kailua, Oahu21
22°C minimum night-time temperature in July in Kailua, Oahu22
22°C minimum night-time temperature in August in Kailua, Oahu22
22°C minimum night-time temperature in September in Kailua, Oahu22
21°C minimum night-time temperature in October in Kailua, Oahu21
20°C minimum night-time temperature in November in Kailua, Oahu20
19°C minimum night-time temperature in December in Kailua, Oahu19
Sea temperature
24°C sea temperature in January in Kailua, Oahu24
24°C sea temperature in February in Kailua, Oahu24
24°C sea temperature in March in Kailua, Oahu24
24°C sea temperature in April in Kailua, Oahu24
25°C sea temperature in May in Kailua, Oahu25
25°C sea temperature in June in Kailua, Oahu25
26°C sea temperature in July in Kailua, Oahu26
26°C sea temperature in August in Kailua, Oahu26
27°C sea temperature in September in Kailua, Oahu27
27°C sea temperature in October in Kailua, Oahu27
26°C sea temperature in November in Kailua, Oahu26
25°C sea temperature in December in Kailua, Oahu25

Sunshine & Daylight in Kailua, Oahu

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
11 hours of daylight per day in January in Kailua, Oahu11
11 hours of daylight per day in February in Kailua, Oahu11
12 hours of daylight per day in March in Kailua, Oahu12
13 hours of daylight per day in April in Kailua, Oahu13
13 hours of daylight per day in May in Kailua, Oahu13
13 hours of daylight per day in June in Kailua, Oahu13
13 hours of daylight per day in July in Kailua, Oahu13
13 hours of daylight per day in August in Kailua, Oahu13
12 hours of daylight per day in September in Kailua, Oahu12
12 hours of daylight per day in October in Kailua, Oahu12
11 hours of daylight per day in November in Kailua, Oahu11
11 hours of daylight per day in December in Kailua, Oahu11

Rainfall in Kailua, Oahu

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
10 days with some rainfall in January in Kailua, Oahu10
9 days with some rainfall in February in Kailua, Oahu9
10 days with some rainfall in March in Kailua, Oahu10
10 days with some rainfall in April in Kailua, Oahu10
8 days with some rainfall in May in Kailua, Oahu8
6 days with some rainfall in June in Kailua, Oahu6
8 days with some rainfall in July in Kailua, Oahu8
7 days with some rainfall in August in Kailua, Oahu7
8 days with some rainfall in September in Kailua, Oahu8
9 days with some rainfall in October in Kailua, Oahu9
10 days with some rainfall in November in Kailua, Oahu10
11 days with some rainfall in December in Kailua, Oahu11
Average monthly rainfall (mm)
89 mm monthly rainfall in January in Kailua, Oahu89
79 mm monthly rainfall in February in Kailua, Oahu79
102 mm monthly rainfall in March in Kailua, Oahu102
55 mm monthly rainfall in April in Kailua, Oahu55
35 mm monthly rainfall in May in Kailua, Oahu35
27 mm monthly rainfall in June in Kailua, Oahu27
41 mm monthly rainfall in July in Kailua, Oahu41
38 mm monthly rainfall in August in Kailua, Oahu38
44 mm monthly rainfall in September in Kailua, Oahu44
76 mm monthly rainfall in October in Kailua, Oahu76
119 mm monthly rainfall in November in Kailua, Oahu119
109 mm monthly rainfall in December in Kailua, Oahu109

More climate for Kailua, Oahu

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
UV (maximum) index 7 (High) in January in Kailua, Oahu7
UV (maximum) index 9 (Very High) in February in Kailua, Oahu9
UV (maximum) index 11 (Extreme) in March in Kailua, Oahu11
UV (maximum) index 11 (Extreme) in April in Kailua, Oahu11
UV (maximum) index 11 (Extreme) in May in Kailua, Oahu11
UV (maximum) index 11+ (Extreme) in June in Kailua, Oahu11
UV (maximum) index 11+ (Extreme) in July in Kailua, Oahu11
UV (maximum) index 11+ (Extreme) in August in Kailua, Oahu11
UV (maximum) index 11 (Extreme) in September in Kailua, Oahu11
UV (maximum) index 9 (Very High) in October in Kailua, Oahu9
UV (maximum) index 7 (High) in November in Kailua, Oahu7
UV (maximum) index 6 (High) in December in Kailua, Oahu6
Heat & Humidity
Low heat & humidity in January in Kailua, OahuL
Low heat & humidity in February in Kailua, OahuL
Low heat & humidity in March in Kailua, OahuL
Low heat & humidity in April in Kailua, OahuL
Moderate heat & humidity in May in Kailua, OahuM
Moderate heat & humidity in June in Kailua, OahuM
Moderate heat & humidity in July in Kailua, OahuM
High heat & humidity in August in Kailua, OahuH
High heat & humidity in September in Kailua, OahuH
Moderate heat & humidity in October in Kailua, OahuM
Moderate heat & humidity in November in Kailua, OahuM
Low heat & humidity in December in Kailua, OahuL

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

What's the climate like in Kailua, Oahu?

Kailua, Oahu has a hot tropical climate with a short dry season.

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

The climate guide for Kailua, Oahu, Hawaii shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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Metric (°C / mm)  |  Imperial (°F / inches)

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