Kailua, Big Island weather live forecast

Today's maximum temperature in Kailua, Big Island is expected to be 79°F. Select a day from the live weather forecast for Kailua, Big Island, Hawaii, USA for more weather parameters.

Monday
25th May
79

68

6

UV6
Tuesday
26th May
79

70

5

UV5
Wednesday
27th May
81

68

6

UV5
Thursday
28th May
81

68

4

UV4
Friday
29th May
81

68

9

UV10

5-day weather forecast updated at 04:01 on Monday 25th May 2026 GMT

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The 5-day weather forecast for Hawaii (Kailua, Big Island) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Kailua, Big Island weather forecast by day

Below are the detailed weather forecasts for Kailua, Big Island for the next 5 days.

Kailua, Big Island weather for Monday 25th May 2026

Expect sunshine and showers in Kailua, Big Island, Hawaii with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 28% chance of some rain and a gentle breeze of 9 mph from the west.

79
°F maximum temperature
68
°F minimum temperature
sunshine and showers
6
hours of sunshine
UV6
UV index (High)
28
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
9
mph wind from W

Kailua, Big Island weather for Tuesday 26th May 2026

Expect mostly cloudy with light rain in Kailua, Big Island, Hawaii with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a gentle breeze of 11 mph from the east.

79
°F maximum temperature
70
°F minimum temperature
mostly cloudy with light rain
5
hours of sunshine
UV5
UV index (Moderate)
25
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
11
mph wind from E

Kailua, Big Island weather for Wednesday 27th May 2026

Expect broken clouds in Kailua, Big Island, Hawaii with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 5 (Moderate) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 10 mph from the south-west.

81
°F maximum temperature
68
°F minimum temperature
broken clouds
6
hours of sunshine
UV5
UV index (Moderate)
0
mm of rainfall expected
L
low heat & humidity
10
mph wind from SW

Kailua, Big Island weather for Thursday 28th May 2026

Expect broken clouds in Kailua, Big Island, Hawaii with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 10 mph from the south-west.

81
°F maximum temperature
68
°F minimum temperature
broken clouds
4
hours of sunshine
UV4
UV index (Moderate)
0
mm of rainfall expected
L
low heat & humidity
10
mph wind from SW

Kailua, Big Island weather for Friday 29th May 2026

Expect scattered clouds in Kailua, Big Island, Hawaii with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 10 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 10 mph from the south-west.