Kailua, Big Island weather live forecast

Today's maximum temperature in Kailua, Big Island is expected to be 29°C. Select a day from the live weather forecast for Kailua, Big Island, Hawaii, USA for more weather parameters.

Wednesday
5th Aug
29

26

4

7
Thursday
6th Aug
29

25

3

6
Friday
7th Aug
29

25

5

6
Saturday
8th Aug
29

24

5

4
Sunday
9th Aug
30

25

8

10

5-day weather forecast updated at 04:00 on Wednesday 5th August 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 Wednesday 5th August 2026

Expect isolated thunderstorms in Kailua, Big Island, Hawaii with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 48% chance of some rain and a gentle breeze of 17 kph from the south-west.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
7
UV index (High)
48
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from SW

Kailua, Big Island weather for Thursday 6th August 2026

Expect broken clouds in Kailua, Big Island, Hawaii with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south.

29
°C maximum temperature
25
°C minimum temperature
broken clouds
3
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from S

Kailua, Big Island weather for Friday 7th August 2026

Expect broken clouds in Kailua, Big Island, Hawaii with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-west.

29
°C maximum temperature
25
°C minimum temperature
broken clouds
5
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from SW

Kailua, Big Island weather for Saturday 8th August 2026

Expect broken clouds in Kailua, Big Island, Hawaii with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-west.

29
°C maximum temperature
24
°C minimum temperature
broken clouds
5
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from SW

Kailua, Big Island weather for Sunday 9th August 2026

Expect sunshine and showers in Kailua, Big Island, Hawaii with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 75% chance of some rain and a gentle breeze of 16 kph from the south-west.