2025 Compare Climate & Weather:
Waimanalo, HI vs Kailua (Honolulu County), HI

Highlights

On average, there are 274 sunny days per year in Kailua (Honolulu County). Waimanalo averages 275 sunny days per year. The US average is 205 sunny days.

Kailua (Honolulu County), Hawaii gets 39.1 inches of rain, on average, per year. Waimanalo, Hawaii gets 32.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Kailua (Honolulu County) averages 0 inches of snow per year. Waimanalo averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Kailua (Honolulu County), Hawaii
Summer High: the July high is around 83.7 degrees
Winter Low: the January low is 67.6
Rain: averages 39.1 inches of rain a year
Snow: averages 0 inches of snow a year

Waimanalo, Hawaii
Summer High: the July high is around 85.7 degrees
Winter Low: the January low is 65.6
Rain: averages 32.1 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Kailua (Honolulu County) is 8.1 (10=best), which means it is one of the least comfortable places in Hawaii.

The annual BestPlaces Comfort Index for Waimanalo is 8.2 (10=best), which means it is one of the least comfortable places in Hawaii.

Today's Weather - Waimanalo, HI

73°F

Today's Weather - Kailua (Honolulu County), HI

74°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Waimanalo / Kailua (Honolulu County)

September is the hottest month for Waimanalo with an average high temperature of 86.5°, which ranks it as warmer than most places in Hawaii. In Waimanalo, there are 8 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Waimanalo are February, January and March.

September is the hottest month for Kailua (Honolulu County) with an average high temperature of 84.9°, which ranks it as about average compared to other places in Hawaii. In Kailua (Honolulu County), there are 12 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Kailua (Honolulu County) are February, January and March.

January has the coldest nighttime temperatures for Waimanalo with an average of 65.6°. This is one of the warmest places in Hawaii.

February has the coldest nighttime temperatures for Kailua (Honolulu County) with an average of 67.4°. This is one of the warmest places in Hawaii.

In Waimanalo, there are 5.2 days annually when the high temperature is over 90°, which is hotter than most places in Hawaii.

In Kailua (Honolulu County), there are 1.1 days annually when the high temperature is over 90°, which is cooler than most places in Hawaii.

In Waimanalo, there are 0.0 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Hawaii.

In Kailua (Honolulu County), there are 0.0 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Hawaii.

In Waimanalo, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Hawaii.

In Kailua (Honolulu County), there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Hawaii.

December is the wettest month in Waimanalo with 4.8 inches of rain, and the driest month is June with 0.9 inches. The wettest season is Spring with 39% of yearly precipitation and 11% occurs in Autumn, which is the driest season. The annual rainfall of 32.1 inches in Waimanalo means that it is drier than most places in Hawaii.


November is the wettest month in Kailua (Honolulu County) with 5.4 inches of rain, and the driest month is June with 1.4 inches. The wettest season is Spring with 33% of yearly precipitation and 14% occurs in Autumn, which is the driest season. The annual rainfall of 39.1 inches in Kailua (Honolulu County) means that it is about average compared to other places in Hawaii.

December is the rainiest month in Waimanalo with 15.3 days of rain, and May is the driest month with only 11.0 rainy days. There are 155.4 rainy days annually in Waimanalo, which is about average compared to other places in Hawaii. The rainiest season is Spring when it rains 26% of the time and the driest is Autumn with only a 24% chance of a rainy day.

July is the rainiest month in Kailua (Honolulu County) with 19.3 days of rain, and February is the driest month with only 12.8 rainy days. There are 196.2 rainy days annually in Kailua (Honolulu County), which is rainier than most places in Hawaii. The rainiest season is Autumn when it rains 27% of the time and the driest is Spring with only a 23% chance of a rainy day.

There is rarely any recorded snowfall in Waimanalo, ranking it as one of the least snowy places in Hawaii.

There is rarely any recorded snowfall in Kailua (Honolulu County), ranking it as one of the least snowy places in Hawaii.

Any measurable snowfall is a rare occurance in Waimanalo.

Any measurable snowfall is a rare occurance in Kailua (Honolulu County).