Sri LankaThe weather in September in Trincomalee
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.
Looking for sun? September isn’t a good month to be in Trincomalee. 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 Trincomalee, Sri Lanka. 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 39°C in 2022, Trincomalee reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 28°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of 22°C to a highest value of 28°C.
Water temperature
The water temperature at Trincomalee is 31°C this month. It’s really warm, perfect for a swim.
Rainfall amount
In September, there is an average of 141 mm of precipitation, spread over 16 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Daily weather in September for Trincomalee
Click on any day in September to get detailed info about the usual weather on that day in Trincomalee. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Trincomalee | New York | |
|---|---|---|
| Average temperature | 34°C | 27°C |
| Max. temperature | 35°C | 31°C |
| Min. temperature | 25°C | -5°C |
| Total precipitation | 141 mm | 57 mm |
| Rainy days | 16 days | 9 days |
Start of September
The month of September starts in Trincomalee with hot temps, averaging around 35°C during the day and nights around 26°C.
Mid September
By mid-September, daytime temps stay steady at around 35°C, with nights around 26°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of September
By the end of September, the average daytime temperature in Trincomalee is around 35°C, while nighttime temps are about 26°C. There’s a significant chance of many days with precipitation.
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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 Trincomalee for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Trincomalee, Sri Lanka. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Trincomalee
Temperature in September in Trincomalee over the years
Precipitation charts
These charts show the average amount of precipitation in September in Trincomalee, Sri Lanka. 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 Trincomalee
Total precipitation in September in Trincomalee over the years
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.
Weather experiences in September in Trincomalee
The weather in September in Trincomalee is rated 4 out of 5 stars by 1 visitor. Have you been to Trincomalee? Share your weather experience to help other visitors.
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Reasonably warm weather apart from rain showers. It's fun to wander around and have adventures, but avoid lunch!— This text is automatically translated to English
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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.