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Oahu United States of America
Temperatures in September
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Temperature in Oahu in September

Oahu is a region in the United States of America. September is generally a warm month with maximum daytime temperatures around 29°C and nighttime temperatures around 24°C in Honolulu. In Oahu, September typically stands out as the hottest month of the year. If you're planning a visit during this time, it would be wise to come prepared. Packing light and breathable summer cloths will ensure you stay comfortable throughout your stay.

What is the temperature of the different cities in Oahu in September?

To get a sense of September's typical temperatures in the key spots of Oahu, explore the map below. Click on a point for an in-depth look.

Weather conditions Weather
Temperatures
Precipitation
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Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • How much sun does Oahu get in September?
    • The weather is predominantly sunny, with an estimated total of around 279 hours of sunshine in Honolulu. This means many sunny days, which creates a cheerful atmosphere during this month.

  • What is the water's temperature in September?
    • The water temperature averages approximately 27°C in Honolulu this month, an ideal temperature for swimming and cooling off.

    Interested in more climate information?

    We have much more information about the climate in Oahu. Interested in the weather conditions in a specific month? Select the month below.

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    • Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed 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.