Kailua, Big Island weather live forecast

Today's maximum temperature in Kailua, Big Island is expected to be 30°C. Select a day from the live weather forecast for Kailua, Big Island, Hawaii, USA for more weather parameters.

Monday
7th Sep
30

26

6

10
Tuesday
8th Sep
30

26

6

10
Wednesday
9th Sep
28

25

3

4
Thursday
10th Sep
28

24

4

11
Friday
11th Sep
27

23

6

10

5-day weather forecast updated at 04:00 on Sunday 6th September 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 7th September 2026

Expect isolated thunderstorms in Kailua, Big Island, Hawaii with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 63% chance of some rain and a gentle breeze of 16 kph from the north-west.

30
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
10
UV index (Very High)
63
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from NW

Kailua, Big Island weather for Tuesday 8th September 2026

Expect isolated thunderstorms in Kailua, Big Island, Hawaii with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 93% chance of some rain and a gentle breeze of 16 kph from the south-west.

30
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
10
UV index (Very High)
93
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from SW

Kailua, Big Island weather for Wednesday 9th September 2026

Expect isolated thunderstorms in Kailua, Big Island, Hawaii with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 85% chance of some rain and a gentle breeze of 19 kph from the north.

28
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
4
UV index (Moderate)
85
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
19
kph wind from N

Kailua, Big Island weather for Thursday 10th September 2026

Expect mostly cloudy with light rain in Kailua, Big Island, Hawaii with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 11 (Extreme) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 75% chance of some rain and a gentle breeze of 17 kph from the south-west.

28
°C maximum temperature
24
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
11
UV index (Extreme)
75
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
17
kph wind from SW

Kailua, Big Island weather for Friday 11th September 2026

Expect broken clouds in Kailua, Big Island, Hawaii with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south.