easeweather.com
Trincomalee
AnuradhapuraBadullaBentotaColomboDehiwala-Mount LaviniaGalleGampahaJaffnaKalutaraKandyKegalleKurunegalaMataraMirissa cityNegomboNuwara EliyaPuttalamSigiriyaTangalle
Trincomalee
More Locations
Sri Lanka weather

Weather in Trincomalee for September 2026

Your guide to Trincomalee weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Trincomalee has been nearly identical to the historical average, with a temperature of 33.1 °C (showing only a slight deviation of 0.2 °C).

  • Expect cooler weather in the next days in Trincomalee with the forecast suggesting a temperature of 31.2 °C, lower than the historical average.

  • In general, the average temperature in Trincomalee at the beginning of September is 33.7 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 32.3 °C by the end of September.

    • Rain 🌧️

  • With an average of 5 rainy days, Trincomalee experiences minimal rainfall in September.

Average dry days
25
Dry days
Average rainy days
5
Rainy days
Average snowy days
0
Snow days
Average temperatures
33°/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
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Partly cloudy
33°
2
Cloudy
34°
3
Patchy rain possible
32°
4
Cloudy
33°
5
Cloudy
35°
6
Patchy rain possible
34°
7
Partly cloudy
35°
8
Patchy rain possible
33°
9
Patchy rain possible
35°
10
Cloudy
34°
11
Patchy rain possible
33°
12
Partly cloudy
35°
13
Partly cloudy
33°
14
Partly cloudy
33°
15
Partly cloudy
32°
16
Partly cloudy
32°
17
Patchy rain possible
33°
18
Partly cloudy
33°
19
Partly cloudy
33°
20
Partly cloudy
33°
21
Partly cloudy
33°
22
Partly cloudy
33°
23
Patchy rain possible
33°
24
Cloudy
33°
25
Patchy rain possible
32°
26
Partly cloudy
31°
27
Sunny
33°
28
Overcast
32°
29
Overcast
33°
30
Overcast
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
 33° /24° 0 mm 10
2 Sept. Cloudy
Cloudy
 34° /23° 0 mm 9
3 Sept. Patchy rain possible
Patchy rain possible
 32° /24° 0 mm 8
4 Sept. Cloudy
Cloudy
 33° /23° 0 mm 9
5 Sept. Cloudy
Cloudy
 35° /24° 0 mm 6
6 Sept. Patchy rain possible
Patchy rain possible
 34° /23° 0 mm 6
7 Sept. Partly cloudy
Partly cloudy
 35° /23° 7.1 mm 7
8 Sept. Patchy rain possible
Patchy rain possible
 33° /23° 11.9 mm 6
9 Sept. Patchy rain possible
Patchy rain possible
 35° /23° 8.1 mm 8
10 Sept. Cloudy
Cloudy
 34° /23° 0 mm 6
11 Sept. Patchy rain possible
Patchy rain possible
 33° /23° 0 mm 6
12 Sept. Partly cloudy
Partly cloudy
 35° /24° 1.9 mm 6
13 Sept. Partly cloudy
Partly cloudy
 33° /25° 2.1 mm 6
14 Sept. Partly cloudy
Partly cloudy
 33° /25° 1.6 mm 6
15 Sept. Partly cloudy
Partly cloudy
 32° /24° 4.5 mm 6
16 Sept. Partly cloudy
Partly cloudy
 32° /24° 2.8 mm 6
17 Sept. Patchy rain possible
Patchy rain possible
 33° /25° 0.4 mm 6
18 Sept. Partly cloudy
Partly cloudy
 33° /25° 2.2 mm 6
19 Sept. Partly cloudy
Partly cloudy
 33° /25° 3.2 mm 6
20 Sept. Partly cloudy
Partly cloudy
 33° /24° 3.9 mm 6
21 Sept. Partly cloudy
Partly cloudy
 33° /24° 0.7 mm 6
22 Sept. Partly cloudy
Partly cloudy
 33° /25° 0.8 mm 6
23 Sept. Patchy rain possible
Patchy rain possible
 33° /25° 0.3 mm 6
24 Sept. Cloudy
Cloudy
 33° /25° 0.8 mm 6
25 Sept. Patchy rain possible
Patchy rain possible
 32° /25° 1.1 mm 5
26 Sept. Partly cloudy
Partly cloudy
 31° /23° 0.1 mm 8
27 Sept. Sunny
Sunny
 33° /28° 1.5 mm 11.7
28 Sept. Overcast
Overcast
 32° /27° 2.2 mm 10.3
29 Sept. Overcast
Overcast
 33° /27° 1.5 mm 11.8
30 Sept. Overcast
Overcast
 32° /27° 9.9 mm 11.6
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 33° and lows near 24°, suitable for diverse activities and preferences.

How much rainfall should be expected in Trincomalee during September?
Moderate rainfall is anticipated in Trincomalee during September, with a total of 50.7 mm spread over approximately 5 days. Considering plans for rainy days is advisable.

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 💧
Typically, Trincomalee has 5 rainy days in September with a total of 50.7 mm of rainfall.

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.