Climate averages 1991–2020
Trincomalee weather
in July.
A hot, fairly dry month: the 2nd warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in Trincomalee: daytime highs average 33.6°C and nights cool to about 26.3°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 31 mm of rain on roughly 6 days, which makes July a fairly dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 34 min on an average July day.
The nearest other city in this atlas is Batticaloa (109 km away). In July its highs average 34.5°C, 0.9°C warmer than Trincomalee, with 24 mm of rain.
Among the 12 cities listed in Sri Lanka, Trincomalee ranks 2nd of 12 for the warmest July highs and joint 3rd of 12 for the driest July (rainfall, lowest first). The mean July high of those 12 cities is 30.2°C; Trincomalee is 3.4°C warmer than that mean.
From July to August, average highs fall by 0.3°C to 33.3°C, and monthly rainfall rises from 31 mm to 45 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Trincomalee climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.9°C24.1°C | 24.1°C | 126 | 14.5 | 11.712 h |
| February | 27.9°C24.4°C | 24.4°C | 74 | 9.6 | 11.812 h |
| March | 30.0°C25.1°C | 25.1°C | 40 | 7.1 | 12.112 h |
| April | 31.7°C26.2°C | 26.2°C | 56 | 10.1 | 12.312 h |
| May | 33.5°C26.7°C | 26.7°C | 48 | 8.1 | 12.513 h |
| June | 33.8°C26.6°C | 26.6°C | 18 | 3.1 | 12.613 h |
| July, selected | 33.6°C26.3°C | 26.3°C | 31 | 5.5 | 12.613 h |
| August | 33.3°C26.0°C | 26.0°C | 45 | 7.8 | 12.412 h |
| September | 33.0°C25.8°C | 25.8°C | 65 | 10.7 | 12.212 h |
| October | 30.7°C25.2°C | 25.2°C | 186 | 18.6 | 11.912 h |
| November | 28.1°C24.5°C | 24.5°C | 301 | 24.1 | 11.712 h |
| December | 27.1°C24.3°C | 24.3°C | 276 | 20.9 | 11.612 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Batticaloa in JulySri Lanka · 109 kmHigh 34.5°C · Low 26.5°C · 24 mm rain
- Kalmunai in JulySri Lanka · 146 kmHigh 33.2°C · Low 26.4°C · 31 mm rain
- Kandy in JulySri Lanka · 157 kmHigh 26.7°C · Low 21.3°C · 83 mm rain
- Point Pedro in JulySri Lanka · 176 kmHigh 31.1°C · Low 27.3°C · 21 mm rain
- Jaffna in JulySri Lanka · 181 kmHigh 30.5°C · Low 27.5°C · 33 mm rain
- Negombo in JulySri Lanka · 216 kmHigh 28.5°C · Low 25.2°C · 176 mm rain
- Colombo in JulySri Lanka · 238 kmHigh 28.5°C · Low 24.8°C · 183 mm rain
- Dehiwala-Mount Lavinia in JulySri Lanka · 244 kmHigh 28.2°C · Low 24.8°C · 205 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Trincomalee) is explained once on the Trincomalee year overview and on the Sources, method and limits page.