easeweather.com
Trincomalee
BentotaColomboDehiwala-Mount LaviniaGalleJaffnaKalutaraKandyKegalleKurunegalaMataraNuwara EliyaPuttalamTangalle
Trincomalee
More Locations
Sri Lanka weather

Weather in Trincomalee for September 2025

Your guide to Trincomalee weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Trincomalee has been nearly identical to the historical average, with a temperature of 32.7 °C (showing only a slight deviation of -0.3 °C).

  • The forecast for the next days in Trincomalee predicts temperatures to be around 33 °C, close to the historical average.

  • In general, the average temperature in Trincomalee at the beginning of September is 32.9 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 33 °C by the end of September.

    • Rain 🌧️

  • With an average of 2 rainy days, Trincomalee experiences minimal rainfall in September.

Average dry days
28
Dry days
Average rainy days
2
Rainy days
Average snowy days
0
Snow days
Average temperatures
34°/24°
Temperatures
Average wind speed
26 km/h
Avg max wind
Average humidity
67 %
Avg humidity

Trincomalee Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Partly cloudy
32°
2
Cloudy
33°
3
Patchy rain possible
31°
4
Cloudy
32°
5
Cloudy
34°
6
Patchy rain possible
33°
7
Partly cloudy
35°
8
Patchy rain possible
31°
9
Patchy rain possible
34°
10
Cloudy
33°
11
Patchy rain possible
32°
12
Partly cloudy
34°
13
Partly cloudy
34°
14
Partly cloudy
34°
15
Partly cloudy
33°
16
Partly cloudy
34°
17
Patchy rain possible
32°
18
Patchy rain possible
33°
19
Partly cloudy
33°
20
Partly cloudy
33°
21
Sunny
33°
22
Sunny
34°
23
Sunny
34°
24
Sunny
33°
25
Sunny
33°
26
Sunny
33°
27
Partly cloudy
33°
28
Partly cloudy
34°
29
Partly cloudy
33°
30
Partly cloudy
32°

Temperatures trend during September in Trincomalee

See the weather trend as well as the moving average line

September weather in Trincomalee day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Partly cloudy
Partly cloudy
 32° /24° 0 mm 8
2 Sept. Cloudy
Cloudy
 33° /24° 0 mm 8
3 Sept. Patchy rain possible
Patchy rain possible
 31° /24° 0 mm 7
4 Sept. Cloudy
Cloudy
 32° /23° 0 mm 7
5 Sept. Cloudy
Cloudy
 34° /24° 0 mm 8
6 Sept. Patchy rain possible
Patchy rain possible
 33° /24° 0 mm 7
7 Sept. Partly cloudy
Partly cloudy
 35° /23° 10.6 mm 8
8 Sept. Patchy rain possible
Patchy rain possible
 31° /23° 17.8 mm 7
9 Sept. Patchy rain possible
Patchy rain possible
 34° /23° 12.2 mm 8
10 Sept. Cloudy
Cloudy
 33° /23° 0 mm 8
11 Sept. Patchy rain possible
Patchy rain possible
 32° /23° 0 mm 8
12 Sept. Partly cloudy
Partly cloudy
 34° /24° 0 mm 8
13 Sept. Partly cloudy
Partly cloudy
 34° /24° 0 mm 8
14 Sept. Partly cloudy
Partly cloudy
 34° /24° 0 mm 9
15 Sept. Partly cloudy
Partly cloudy
 33° /24° 0 mm 8
16 Sept. Partly cloudy
Partly cloudy
 34° /25° 0 mm 8
17 Sept. Patchy rain possible
Patchy rain possible
 32° /27° 0.8 mm 2.3
18 Sept. Patchy rain possible
Patchy rain possible
 33° /27° 0.2 mm 2.6
19 Sept. Partly cloudy
Partly cloudy
 33° /27° 0 mm 1.6
20 Sept. Partly cloudy
Partly cloudy
 33° /27° 0 mm 3.7
21 Sept. Sunny
Sunny
 33° /27° 0 mm 7
22 Sept. Sunny
Sunny
 34° /27° 0 mm 7
23 Sept. Sunny
Sunny
 34° /27° 0 mm 7
24 Sept. Sunny
Sunny
 33° /27° 0 mm 7
25 Sept. Sunny
Sunny
 33° /27° 0 mm 7
26 Sept. Sunny
Sunny
 33° /27° 0 mm 7
27 Sept. Partly cloudy
Partly cloudy
 33° /27° 0 mm 7
28 Sept. Partly cloudy
Partly cloudy
 34° /27° 0 mm 7
29 Sept. Partly cloudy
Partly cloudy
 33° /27° 0 mm 7
30 Sept. Partly cloudy
Partly cloudy
 32° /27° 0 mm 7
Next
Important Notice
Our weather forecast for Trincomalee in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Trincomalee forecast closer to your planned date for the most up-to-date weather information.
Change Month
‹
›

Trincomalee in September - FAQ

What are the expected maximum and minimum temperatures in Trincomalee during September?
During September, expect a variety of temperatures with highs around 34° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Trincomalee during September?
Expect minimal rainfall in Trincomalee during September, with a total of 19.3 mm over approximately 2 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Trincomalee during September?
The average wind speed in Trincomalee during September is 26 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Trincomalee

Explore the daily rainfall trends and prepare for Trincomalees September weather 💧

UV exposure in Trincomalee during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

Quick links

More Trincomalee weather pages
You are here
Location coordinates Where is Trincomalee?

Get accurate weather forecasts for Trincomalee, located at latitude 8.578 and longitude 81.229. Stay updated with localized weather information tailored for Trincomalee.

Found a mistake?
We appreciate your attention to details. Tell us here.