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United StatesThe weather in September in Hawaii
It's warm in September in Hawaii with an average temperature of 26°C. Temperatures this month range from a low of 25°C to a high of 28°C. At night, you can expect temperatures between 12°C and 16°C.
Looking for great weather? September is a good time to be in Hawaii. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Hawaii, United States. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 33°C in 2015, Hawaii reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 20°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of 7°C to a highest value of 26°C.
Rainfall amount
In September, there is an average of 43 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in September for Hawaii
Click on any day in September to get detailed info about the usual weather on that day in Hawaii. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Hawaii | New York | |
|---|---|---|
| Average temperature | 26°C | 27°C |
| Max. temperature | 28°C | 31°C |
| Min. temperature | 12°C | -5°C |
| Total precipitation | 43 mm | 57 mm |
| Rainy days | 9 days | 9 days |
Start of September
The month of September starts in Hawaii with warm temps, averaging around 26°C during the day and nights around 13°C.
Mid September
By mid-September, daytime temps rise to around 27°C, with nights around 14°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of September
By the end of September, the average daytime temperature in Hawaii is around 28°C, while nighttime temps are about 16°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Hawaii for all months and discover the best travel time
The climate in Hawaii is based on weather data from . Other places, like New York City, Miami or Los Angeles, might have different weather. You can check out all destinations in Hawaii to get the full picture of the climate.
Temperature charts
These charts show the average temperatures in September in Hawaii, United States. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Hawaii
Temperature in September in Hawaii over the years
Precipitation charts
These charts show the average amount of precipitation in September in Hawaii, United States. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Hawaii
Total precipitation in September in Hawaii over the years
Daily UV index in September in Hawaii
This chart shows the average daily UV index in September in Hawaii, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Hawaii
Have you been to Hawaii in September?
Share your weather experience in September in Hawaii.
Average weather in Hawaii by month
Click on a month below to see detailed weather info for Hawaii. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.