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.

Tuesday
22nd Sep
30

26

7

8
Wednesday
23rd Sep
29

26

6

6
Thursday
24th Sep
28

25

2

3
Friday
25th Sep
29

26

4

3
Saturday
26th Sep
29

26

5

3

5-day weather forecast updated at 04:01 on Wednesday 23rd September 2026 GMT

More about Kailua, Big Island

Kailua, Big Island by month

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

Recommended for Hawaii

GO Airport Shuttle discount code: 5% off airport transfers

Discount Code

Save EXTRA 5% on airport transfers worldwide
Book private taxis & shuttle buses with discount code
Enter in coupon box on 'Reservations' page

Show discount code

******WEB

Redeem GO Airport Shuttle discount code >>

Expires at 23:59 on Thursday 31st Dec 2026

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 Tuesday 22nd 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 8 (Very High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 40% chance of some rain and a gentle breeze of 17 kph from the east.

30
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
8
UV index (Very High)
40
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from E

Kailua, Big Island weather for Wednesday 23rd September 2026

Expect isolated thunderstorms in Kailua, Big Island, Hawaii with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 96% chance of some rain and a gentle breeze of 16 kph from the east.

29
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
6
UV index (High)
96
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from E

Kailua, Big Island weather for Thursday 24th September 2026

Expect isolated thunderstorms in Kailua, Big Island, Hawaii with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 3 (Moderate) and 2 hours of bright sunshine. There are 30-40 mm of rainfall expected with 93% chance of some rain and a gentle breeze of 16 kph from the south-east.

28
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
3
UV index (Moderate)
93
% chance of some rain
<40
mm of rainfall expected
L
low heat & humidity
16
kph wind from SE

Kailua, Big Island weather for Friday 25th September 2026

Expect mostly cloudy with rain in Kailua, Big Island, Hawaii with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 30-40 mm of rainfall expected with 75% chance of some rain and a gentle breeze of 17 kph from the east.

29
°C maximum temperature
26
°C minimum temperature
mostly cloudy with rain
4
hours of sunshine
3
UV index (Moderate)
75
% chance of some rain
<40
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from E

Kailua, Big Island weather for Saturday 26th September 2026

Expect mostly cloudy with rain in Kailua, Big Island, Hawaii with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 40-50 mm of rainfall expected with 82% chance of some rain and a moderate breeze of 24 kph from the north-east.