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Trincomalee weather by month
Check out Trincomalee weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Trincomalee (°C)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max temperature (daytime) | 28 |
29 |
31 |
33 |
35 |
35 |
34 |
34 |
34 |
32 |
29 |
28 |
| Min temperature (night-time) | 24 |
25 |
25 |
26 |
26 |
27 |
26 |
26 |
25 |
25 |
24 |
24 |
| Heat & Humidity | M |
M |
H |
VH |
VH |
VH |
VH |
VH |
VH |
VH |
H |
M |
| Sea temperature | 27 |
27 |
29 |
30 |
30 |
29 |
29 |
29 |
29 |
29 |
28 |
27 |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & Daylight in Trincomalee
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daily hours of sunshine | ||||||||||||
| Daily hours of daylight | 12 |
12 |
12 |
12 |
13 |
13 |
13 |
12 |
12 |
12 |
12 |
12 |
| UV Index (Maximum) | 11 |
11 |
11 |
11 |
11 |
11 |
11 |
11 |
11 |
11 |
11 |
10 |
Rainfall in Trincomalee
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of days with some rain | 7 |
5 |
4 |
6 |
4 |
2 |
4 |
5 |
6 |
12 |
16 |
16 |
| Average monthly rainfall (mm) | 125 |
106 |
56 |
55 |
49 |
25 |
63 |
84 |
96 |
223 |
343 |
367 |
More about Trincomalee
Trincomalee by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Sri Lanka
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The climate guide for Sri Lanka (Trincomalee) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
What's the climate like in Trincomalee?
Trincomalee has a hot tropical climate with a winter dry season.
Trincomalee weather in January
Expect daytime maximum temperatures of 28°C in Trincomalee, Sri Lanka in January based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 125 mm of rainfall in the month.
- 28°C max day temperature
28 - 7 hours of sunshine per day
- 7 days with some rainfall
7 - 24°C min night temperature
24 - 12 hours of daylight per day
12 - Moderate heat & humidity
M - 125 mm of monthly rainfall
125 - 11 (Extreme) UV index
11 - 27°C sea temperature
27
Trincomalee weather in February
Expect daytime maximum temperatures of 29°C in Trincomalee, Sri Lanka in February based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 106 mm of rainfall in the month.
- 29°C max day temperature
29 - 8 hours of sunshine per day
- 5 days with some rainfall
5 - 25°C min night temperature
25 - 12 hours of daylight per day
12 - Moderate heat & humidity
M - 106 mm of monthly rainfall
106 - 11+ (Extreme) UV index
11 - 27°C sea temperature
27
Trincomalee weather in March
Expect daytime maximum temperatures of 31°C in Trincomalee, Sri Lanka in March and high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 56 mm of rainfall in the month.
- 31°C max day temperature
31 - 9 hours of sunshine per day
- 4 days with some rainfall
4 - 25°C min night temperature
25 - 12 hours of daylight per day
12 - High heat & humidity
H - 56 mm of monthly rainfall
56 - 11+ (Extreme) UV index
11 - 29°C sea temperature
29
Trincomalee weather in April
Expect daytime maximum temperatures of 33°C in Trincomalee, Sri Lanka in April and very high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 55 mm of rainfall in the month.
- 33°C max day temperature
33 - 8 hours of sunshine per day
- 6 days with some rainfall
6 - 26°C min night temperature
26 - 12 hours of daylight per day
12 - Very High heat & humidity
VH - 55 mm of monthly rainfall
55 - 11+ (Extreme) UV index
11 - 30°C sea temperature
30
Trincomalee weather in May
Expect daytime maximum temperatures of 35°C in Trincomalee, Sri Lanka in May and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 49 mm of rainfall in the month.
- 35°C max day temperature
35 - 7 hours of sunshine per day
- 4 days with some rainfall
4 - 26°C min night temperature
26 - 13 hours of daylight per day
13 - Very High heat & humidity
VH - 49 mm of monthly rainfall
49 - 11+ (Extreme) UV index
11 - 30°C sea temperature
30
Trincomalee weather in June
Expect daytime maximum temperatures of 35°C in Trincomalee, Sri Lanka in June and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average.
- 35°C max day temperature
35 - 7 hours of sunshine per day
- 2 days with some rainfall
2 - 27°C min night temperature
27 - 13 hours of daylight per day
13 - Very High heat & humidity
VH - 25 mm of monthly rainfall
25 - 11+ (Extreme) UV index
11 - 29°C sea temperature
29
Trincomalee weather in July
Expect daytime maximum temperatures of 34°C in Trincomalee, Sri Lanka in July and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 63 mm of rainfall in the month.
- 34°C max day temperature
34 - 7 hours of sunshine per day
- 4 days with some rainfall
4 - 26°C min night temperature
26 - 13 hours of daylight per day
13 - Very High heat & humidity
VH - 63 mm of monthly rainfall
63 - 11+ (Extreme) UV index
11 - 29°C sea temperature
29
Trincomalee weather in August
Expect daytime maximum temperatures of 34°C in Trincomalee, Sri Lanka in August and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 84 mm of rainfall in the month.
- 34°C max day temperature
34 - 7 hours of sunshine per day
- 5 days with some rainfall
5 - 26°C min night temperature
26 - 12 hours of daylight per day
12 - Very High heat & humidity
VH - 84 mm of monthly rainfall
84 - 11+ (Extreme) UV index
11 - 29°C sea temperature
29
Trincomalee weather in September
Expect daytime maximum temperatures of 34°C in Trincomalee, Sri Lanka in September and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 96 mm of rainfall in the month.
- 34°C max day temperature
34 - 7 hours of sunshine per day
- 6 days with some rainfall
6 - 25°C min night temperature
25 - 12 hours of daylight per day
12 - Very High heat & humidity
VH - 96 mm of monthly rainfall
96 - 11+ (Extreme) UV index
11 - 29°C sea temperature
29
Trincomalee weather in October
Expect daytime maximum temperatures of 32°C in Trincomalee, Sri Lanka in October and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 223 mm of rainfall in the month.
- 32°C max day temperature
32 - 7 hours of sunshine per day
- 12 days with some rainfall
12 - 25°C min night temperature
25 - 12 hours of daylight per day
12 - Very High heat & humidity
VH - 223 mm of monthly rainfall
223 - 11+ (Extreme) UV index
11 - 29°C sea temperature
29
Trincomalee weather in November
Expect daytime maximum temperatures of 29°C in Trincomalee, Sri Lanka in November and high heat and humidity based on long-term weather averages. There are 6 hours of sunshine per day on average with 16 days with some rainfall and typically 343 mm of rainfall in the month.
- 29°C max day temperature
29 - 6 hours of sunshine per day
- 16 days with some rainfall
16 - 24°C min night temperature
24 - 12 hours of daylight per day
12 - High heat & humidity
H - 343 mm of monthly rainfall
343 - 11 (Extreme) UV index
11 - 28°C sea temperature
28
Trincomalee weather in December
Expect daytime maximum temperatures of 28°C in Trincomalee, Sri Lanka in December based on long-term weather averages. There are 6 hours of sunshine per day on average with 16 days with some rainfall and typically 367 mm of rainfall in the month.
- 28°C max day temperature
28 - 6 hours of sunshine per day
- 16 days with some rainfall
16 - 24°C min night temperature
24 - 12 hours of daylight per day
12 - Moderate heat & humidity
M - 367 mm of monthly rainfall
367 - 10 (Very High) UV index
10 - 27°C sea temperature
27
More about Trincomalee
Trincomalee by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Sri Lanka
- Save up to £300 on holidays (Jan 2026-Nov 2027)
- Book online with TUI Black Friday discount code
- Sign up to myTUI. Discount varies by spend. T&Cs apply
Expires at 23:59 on Tuesday 2nd Dec 2025 · View all TUI offers
The climate guide for Sri Lanka (Trincomalee) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about Sri Lanka
Compare Trincomalee with the UK
Below the Trincomalee chart shows average maximum daytime temperature for Trincomalee, Sri Lanka and the UK (London).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
Compare more Trincomalee weather >>
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