Temperatures in September
It's warm in September in Tonga with an average temperature of 26°C. Temperatures this month range from a low of 25°C to a high of 27°C. At night, you can expect temperatures between 19°C and 22°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Tonga in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in Tonga with warm temperatures, averaging around 26°C during the day and nights close to 20°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-September
By mid-September, the average daytime temperature stays the same at 26°C, with nights close to 21°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
Temperatures vary between day and night, so it’s smart to wear layers.
End of September
By the end of September, the average daytime temperature in Tonga will be around 27°C, with nights close to 21°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
As it gets cooler in the evening, it’s best to wear layers.
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Precipitation in September
In September, there is an average of 101 mm of precipitation, spread over 7 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
The average precipitation chance is 24% per day this month. Though that seems low, there are also a few days with a higher chance of precipitation.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Tonga. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Tonga in September |
UK | ||
|---|---|---|---|
 Average Temperature |
26°C | 20°C | |
 High Temp |
27°C | 22°C | |
| Low Temp |
25°C | 17°C | |
 Total Precipitation |
101 mm | 44 mm | |
| Rainy Days |
7 days | 8 days | |
August
Is September a good time to visit Tonga?
After some sun? Then September isn’t the best time to be in Tonga. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Tonga in September
With 30°C, Tonga hit the highest temperature in the last 10 years in September 2016. The lowest daytime temperature in this month was 21°C in 2015. The extreme night temperatures ranged from a low of 12°C to a high of 24°C.
Check out the climate of Tonga for all months and discover the best travel time
The climate of Tonga is based on weather data from Nuku‘alofa. Other locations might have different weather. You can check out all destinations in Tonga for a full picture of the climate.
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Daily Temperature in September in Tonga
This chart shows the average daily temperatures, both day and night, for each day in September in Tonga, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Tonga
The chart below shows the average daily precipitation in September for Tonga, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 7 days of rain in Tonga.
Daily UV Index in September in Tonga
This chart shows the average daily UV index in September in Tonga, 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.
Temperature in September in Tonga Over the Years
This chart shows the average temperature in September in Tonga, measured in degrees Celsius, over the past years.
Total Precipitation in September in Tonga Over the Years
This chart shows the average precipitation in September in Tonga, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Tonga
Click on a specific day in September for detailed info on the typical weather on that day in Tonga. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Tonga
Have you been to Tonga in September?
Share your weather experience in September in Tonga.
Average Weather in Tonga by Month
Click on a month below to see detailed weather info for Tonga. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
