Oahu Weather Seasons
The Hawaiian Islands are perfectly placed in the Central Pacific Ocean where cooling trade winds prevail most of the time and Honolulu’s average temperature only varies about 7-8 degrees all year.
Hawaii’s official calendar seasons are the same as the US mainland: Spring March 20, Summer June 21, Fall September 22 and Winter December 21.
Yet, since the temperature only changes a few degrees, there are really only two basic seasons… the hotter drier season from April through September and the rainier cooler season from October through March.
So what does Oahu Hawaii weather feel like?
Comments from Locals…
- “When you arrive and step outside the plane, the air seems to surround you like a warm embrace. If you came from a dry climate, you may notice that your skin replenishes with moisture after several days to a week on the island… like chapped lips softening.” –Tanya
- “Perfect balance… not too tropical, hot, humid or wet due to Oahu’s location in the ocean. Oahu Hawaii weather is cooler and not as humid as South Pacific islands or those closer to the equator. Trade winds bring sunny skies with welcomed onshore winds on one side of the island and offshore winds on the opposite side. Sunset only varies about 1-1/2 hours all year from about 6 to 7:30 p.m”… –Ira
- “Warm and balmy. No tornadoes or twisters. Hurricanes are few and far between, maybe every 10 years. Can’t beat the weather compared to other places, nearly perfect unless trade winds stop. Recently spent time in Florida in July and the air felt wetter and hotter… like someone had a blow dryer on me”… –Pat
I know visitors who came here and literally made a decision to move to the island on a whim. Some literally never go back home. I ran into a high school classmate from California at an Oahu restaurant who said he came to Hawaii for a vacation and immediately decided to move. This is a guy who had a mainland business and is an expert downhill snow skier. He now paddles outrigger canoe!
Here’s an August chart of average temperatures based on the National Oceanic and Atmospheric Administration’s (NOAA) 1981-2010 Normals Data. The chart compares Oahu Hawaii weather to US mainland coastal cities and Tahiti in French Polynesia. Tahiti’s comparison month is February, summertime in Tahiti.
I do recommend French Polynesia’s gorgeous calm lagoons though… been there, done that, would do it again!
I rounded some of NOAA’s figures and converted them to Celsius for ease of reference so figures may not be exact. I am not affiliated with NOAA.