Kailua, Big Island weather live forecast

Today's maximum temperature in Kailua, Big Island is expected to be 28°C. Select a day from the live weather forecast for Kailua, Big Island, Hawaii, USA for more weather parameters.

Wednesday
17th Jun
28

22

4

7
Thursday
18th Jun
29

23

6

8
Friday
19th Jun
29

22

5

5
Saturday
20th Jun
30

23

5

5
Sunday
21st Jun
28

22

3

10

5-day weather forecast updated at 04:00 on Wednesday 17th June 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 17th June 2026

Expect isolated thunderstorms in Kailua, Big Island, Hawaii with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 82% chance of some rain and a gentle breeze of 16 kph from the north-east.

28
°C maximum temperature
22
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
7
UV index (High)
82
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
16
kph wind from NE

Kailua, Big Island weather for Thursday 18th June 2026

Expect isolated thunderstorms in Kailua, Big Island, Hawaii with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 64% chance of some rain and a gentle breeze of 17 kph from the north-west.

29
°C maximum temperature
23
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
8
UV index (Very High)
64
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from NW

Kailua, Big Island weather for Friday 19th June 2026

Expect broken clouds in Kailua, Big Island, Hawaii with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south.

29
°C maximum temperature
22
°C minimum temperature
broken clouds
5
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
M
moderate heat & humidity
18
kph wind from S

Kailua, Big Island weather for Saturday 20th June 2026

Expect broken clouds in Kailua, Big Island, Hawaii with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 5 (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.

30
°C maximum temperature
23
°C minimum temperature
broken clouds
5
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from SW

Kailua, Big Island weather for Sunday 21st June 2026

Expect broken clouds in Kailua, Big Island, Hawaii with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-west.