Kailua Weather in January

The climate in Kailua during January can be summarized as warm, humid and very wet.

January is in the winter in Kailua and is typically the coldest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 18°C (64°F) is normal.

On average January is the 5th wettest month of the year in Kailua with around 203mm 8 inches of rain making it a very wet time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.3 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Kailua in January 2024.