Temperatures in September
It's hot in September in Trincomalee with an average temperature of 34°C. Temperatures this month range from a low of 33°C to a high of 35°C. At night, you can expect temperatures between 25°C and 26°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Trincomalee 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 Trincomalee with hot temperatures, averaging around 35°C during the day and nights close to 26°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
Mid-September
By mid-September, the average daytime temperature stays the same at 35°C, with nights close to 26°C. During this part of the month, you can expect regular precipitation, but there’ll also be some sunny days. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
End of September
By the end of September, the average daytime temperature in Trincomalee will be around 35°C, with nights close to 26°C. There’s a significant chance of many days with precipitation. Breezy clothes like shorts or a dress, plus a hat and sunglasses, are ideal.
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Water temperature
The water temperature at Trincomalee is 31°C this month. It’s really warm, perfect for a swim.
Precipitation in September
In September, there is an average of 141 mm of precipitation, spread over 10 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
The average precipitation chance is 34% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Trincomalee. 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.
Trincomalee in September |
London | ||
|---|---|---|---|
 Average Temperature |
34°C | 20°C | |
 High Temp |
35°C | 22°C | |
| Low Temp |
33°C | 17°C | |
 Total Precipitation |
141 mm | 44 mm | |
| Rainy Days |
10 days | 8 days | |
August
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.
Is September a good time to visit Trincomalee?
After some sun? Then September isn’t the best time to be in Trincomalee. The temperature is pleasant, but there’s too much chance of rain this month.
Temperature records for Trincomalee in September
With 39°C, Trincomalee hit the highest temperature in the last 10 years in September 2022. The lowest daytime temperature in this month was 28°C in 2019. The extreme night temperatures ranged from a low of 22°C to a high of 28°C.
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Daily Temperature in September in Trincomalee
This chart shows the average daily temperatures, both day and night, for each day in September in Trincomalee, 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 Trincomalee
The chart below shows the average daily precipitation in September for Trincomalee, 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 10 days of rain in Trincomalee.
Daily UV Index in September in Trincomalee
This chart shows the average daily UV index in September in Trincomalee, 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 Trincomalee Over the Years
This chart shows the average temperature in September in Trincomalee, measured in degrees Celsius, over the past years.
Total Precipitation in September in Trincomalee Over the Years
This chart shows the average precipitation in September in Trincomalee, 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 Trincomalee
Click on a specific day in September for detailed info on the typical weather on that day in Trincomalee. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Trincomalee
The weather in September in Trincomalee is rated 0 out of 5 stars by 1 visitor. Have you been to Trincomalee? Share your weather experience to help other visitors.
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Average Weather in Trincomalee by Month
Click on a month below to see detailed weather info for Trincomalee. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Trincomalee for all months at once
