Honolulu weather in September (Hawaii, United States of America)

What should you pack for a trip to Honolulu in September? Here’s a detailed forecast of the month’s weather patterns.

Temperatures

You’ll find the weather in Honolulu during September to be perfect, with high temperatures and low rainfall. Throughout the day, temperatures can rise to about 29°C. At night, they generally drop to 24°C. This period is characterized by high temperatures, often making it the hottest month of the year. Dressing in light, airy clothing will help you stay cool and comfortable.

Precipitation

Honolulu in September usually receives low rainfall, averaging around 24 mm for the month. Expect around 9 days of rain based on historical data.

Average sunshine

With approximately 279 hours hours of sun, the days are filled with brightness. It makes it a perfect month for outdoor activities.

In case you lean more towards enjoying temperate temperatures and rain-free days typically offer the most optimal weather. In contrast, tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Honolulu climate page with graphs.

 

Honolulu, monthly averages in September

Min Temperature 24°C  

Max Temperature 29°C  

Water Temperature 27°C  

Chance of Rain 29%  

Precipitation 24 mm  

Rainy days 9 days  

Humidity 66%  

Windspeed 14 km/h  

Sunshine 279 hours  

Percentage Sunshine 76%  

Where to go in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. With a water temperature of around 27°C this is a great month to swim so bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Honolulu.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.