The remote server returned an error: (400) Bad Request.The remote server returned an error: (400) Bad Request. 2025 Compare Climate & Weather: Portland, OR vs Kailua (Hawaii County), HI

2025 Compare Climate & Weather:
Portland, OR vs Kailua (Hawaii County), HI

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Highlights

On average, there are 174 sunny days per year in Kailua (Hawaii County). Portland averages 144 sunny days per year. The US average is 205 sunny days.

Kailua (Hawaii County), Hawaii gets 18.7 inches of rain, on average, per year. Portland, Oregon gets 42.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Kailua (Hawaii County) averages 0 inches of snow per year. Portland averages 2.6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Kailua (Hawaii County), Hawaii
Summer High: the July high is around 83.5 degrees
Winter Low: the January low is 65
Rain: averages 18.7 inches of rain a year
Snow: averages 0 inches of snow a year

Portland, Oregon
Summer High: the July high is around 80.5 degrees
Winter Low: the January low is 36.4
Rain: averages 42.8 inches of rain a year
Snow: averages 2.6 inches of snow a year

BestPlaces Comfort Index
Kailua (Hawaii County)

The annual BestPlaces Comfort Index for Kailua (Hawaii County) is 8.8 (10=best), which means it is more comfortable than most places in Hawaii.

8.8 / 10
February, December and January are the most pleasant months in Kailua (Hawaii County), while August and September are the least comfortable months.

Portland

The annual BestPlaces Comfort Index for Portland is 7.5 (10=best), which means it is more comfortable than most places in Oregon.

7.5 / 10
August, July and September are the most pleasant months in Portland, while December and January are the least comfortable months.

Average Monthly High / Low (°F)
MonthPortland, ORKailua (Hawaii County), HI
January48° / 36°80° / 65°
February52° / 37°80° / 64°
March57° / 40°80° / 66°
April62° / 43°81° / 67°
May68° / 48°82° / 68°
June74° / 52°83° / 70°
July81° / 56°84° / 71°
August81° / 56°84° / 71°
September76° / 52°85° / 71°
October64° / 46°84° / 70°
November53° / 40°83° / 69°
December46° / 36°81° / 66°
Hot, Freezing, Rainy, Snowy Days: Portland / Kailua (Hawaii County)
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 07 / 019 / 51 / 0
February0 / 06 / 015 / 40 / 0
March0 / 03 / 018 / 60 / 0
April0 / 01 / 016 / 60 / 0
May1 / 00 / 013 / 80 / 0
June1 / 10 / 09 / 90 / 0
July4 / 10 / 04 / 90 / 0
August4 / 20 / 04 / 70 / 0
September1 / 20 / 07 / 70 / 0
October0 / 11 / 013 / 60 / 0
November0 / 13 / 019 / 50 / 0
December0 / 09 / 019 / 51 / 0
August is the hottest month for Portland with an average high temperature of 81.1°, which ranks it as cooler than most places in Oregon. In Portland, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Portland are September, July and August.

September is the hottest month for Kailua (Hawaii County) with an average high temperature of 84.5°, which ranks it as about average compared to other places in Hawaii. In Kailua (Hawaii County), there are 12 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Kailua (Hawaii County) are February, January and March.
December has the coldest nighttime temperatures for Portland with an average of 35.6°. This is warmer than most places in Oregon.

February has the coldest nighttime temperatures for Kailua (Hawaii County) with an average of 64.4°. This is warmer than most places in Hawaii.

In Portland, there are 11.6 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.

In Kailua (Hawaii County), there are 7.8 days annually when the high temperature is over 90°, which is hotter than most places in Hawaii.

In Portland, there are 29.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Oregon.

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

In Kailua (Hawaii 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 Portland with 6.8 inches of rain, and the driest month is July with 0.7 inches. The wettest season is Spring with 41% of yearly precipitation and 7% occurs in Autumn, which is the driest season. The annual rainfall of 42.8 inches in Portland means that it is about average compared to other places in Oregon.


December is the wettest month in Kailua (Hawaii County) with 2.5 inches of rain, and the driest month is June with 1.1 inches. The wettest season is Spring with 33% of yearly precipitation and 22% occurs in Autumn, which is the driest season. The annual rainfall of 18.7 inches in Kailua (Hawaii County) means that it is drier than most places in Hawaii.

November is the rainiest month in Portland with 19.3 days of rain, and August is the driest month with only 3.7 rainy days. There are 155.9 rainy days annually in Portland, which is rainier than most places in Oregon. The rainiest season is Spring when it rains 34% of the time and the driest is Autumn with only a 11% chance of a rainy day.

June is the rainiest month in Kailua (Hawaii County) with 8.9 days of rain, and February is the driest month with only 4.0 rainy days. There are 76.1 rainy days annually in Kailua (Hawaii County), which is less rainy than most places in Hawaii. The rainiest season is Autumn when it rains 32% of the time and the driest is Spring with only a 18% chance of a rainy day.

An annual snowfall of 2.6 inches in Portland means that it is less snowy than most places in Oregon.

There is rarely any recorded snowfall in Kailua (Hawaii County), ranking it as one of the least snowy places in Hawaii.
December is the snowiest month in Portland with 0.9 inches of snow, and 3 months of the year have significant snowfall.

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

DID YOU KNOW?

Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.

Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.

Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.

Reviews for Portland    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

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Reviews for Kailua (Hawaii County)    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

Start Your Review of Kailua (Hawaii County)

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Zips In Portland, Oregon
97206, 97202, 97233, 97219, 97236, 97230, 97211, 97266, 97217, 97203, 28 total
Zips In KAILUA (HAWAII COUNTY), HAWAII
96740
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