The weather in September in Wainaku

It's hot in September in Wainaku with an average temperature of 30°C. Temperatures this month range from a low of 29°C to a high of 31°C. At night, you can expect temperatures between 21°C and 23°C.

Looking for sun? September isn’t a good month to be in Wainaku. The temperature is nice, but there’s too much chance of 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 Wainaku, 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 34°C in 2019, Wainaku reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 23°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 5°C to a highest value of 25°C.

Rainfall amount

In September, there is an average of 358 mm of precipitation, spread over 26 days. The wind speed is around 4 Bft, mostly coming from the Southwest.

Daily weather in September for Wainaku

Click on any day in September to get detailed info about the usual weather on that day in Wainaku. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Wainaku New York
Average temperature 30°C 27°C
Max. temperature 31°C 31°C
Min. temperature 21°C -5°C
Total precipitation 358 mm 57 mm
Rainy days 26 days 9 days

Start of September

The month of September starts in Wainaku with hot temps, averaging around 31°C during the day and nights around 23°C.

Mid September

By mid-September, daytime temps drop to around 30°C, with nights around 22°C. There’s a high chance of precipitation during this time.

End of September

By the end of September, the average daytime temperature in Wainaku is around 30°C, while nighttime temps are about 23°C. There’s a significant chance of many days with precipitation.

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 Wainaku for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in September in Wainaku, Hawaii. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Wainaku

Temperature in September in Wainaku over the years

Precipitation charts

These charts show the average amount of precipitation in September in Wainaku, 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 Wainaku

Total precipitation in September in Wainaku over the years

Daily UV index in September in Wainaku

This chart shows the average daily UV index in September in Wainaku, 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 Wainaku

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Average weather in Wainaku by month

Click on a month below to see detailed weather info for Wainaku. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.