Weathermondo.com
United StatesThe weather in September in Ha'ena
It's hot in September in Ha'ena with an average temperature of 30°C. Temperatures this month range from a low of 30°C to a high of 31°C. At night, you can expect temperatures between 24°C and 25°C.
September is a good month to be in Ha'ena for sunny weather. You’ll have high temperatures and 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 Ha'ena, Hawaii. 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 2019, Ha'ena reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 27°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 20°C to a highest value of 27°C.
Rainfall amount
In September, there is an average of 32 mm of precipitation, spread over 7 days. The wind speed is around 4 Bft, mostly coming from the Northeast.
Daily weather in September for Ha'ena
Click on any day in September to get detailed info about the usual weather on that day in Ha'ena. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Ha'ena | New York | |
|---|---|---|
| Average temperature | 30°C | 27°C |
| Max. temperature | 31°C | 31°C |
| Min. temperature | 24°C | -5°C |
| Total precipitation | 32 mm | 57 mm |
| Rainy days | 7 days | 9 days |
Start of September
The month of September starts in Ha'ena with hot temps, averaging around 31°C during the day and nights around 25°C.
Mid September
By mid-September, daytime temps stay steady at around 31°C, with nights around 25°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 Ha'ena is around 31°C, while nighttime temps are about 25°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 8 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 Ha'ena for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Ha'ena, Hawaii. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Ha'ena
Temperature in September in Ha'ena over the years
Precipitation charts
These charts show the average amount of precipitation in September in Ha'ena, Hawaii. 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 Ha'ena
Total precipitation in September in Ha'ena over the years
Daily UV index in September in Ha'ena
This chart shows the average daily UV index in September in Ha'ena, 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 Ha'ena
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Average weather in Ha'ena by month
Click on a month below to see detailed weather info for Ha'ena. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.