Trincomalee in Spring
In spring (March, April and May), Trincomalee sees average daytime highs around 31°C and overnight lows near 26°C, with 143 mm of rain over about 25 wet days across the season. It is the 2nd-warmest season and the 3rd-wettest season.
Over the season highs climb from about 28°C in early March to 33°C by late May. The sky is clear or mostly clear about 39% of the time across spring, and the air most often feels miserable.
Spring is Trincomalee's 2nd-best season to visit on our travel score. Trincomalee has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Trincomalee's year-round climate.
- Avg daytime high
- 31°C
- 2nd-warmest season
- Avg overnight low
- 26°C
- Rainfall
- 143 mm
- 25 wet days
- Avg wind
- 14 km/h
- Travel score
- 4.6
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Trincomalee in Spring
Over the season highs climb from about 28°C in early March to 33°C by late May.
A typical spring day in Trincomalee reaches about 31°C and drops to 26°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Trincomalee
Once humidity and wind are folded in, spring brings about 84 days that feel above 32°C and 0 that feel at or below 0°C.
The story in spring is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Trincomalee weather by month
How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 27° / 25° | 126 | 14.5 | 11.6 | 5.8 |
| Feb | 28° / 25° | 73 | 9.7 | 11.7 | 6.3 |
| Mar | 29° / 25° | 40 | 7.2 | 11.9 | 5.8 |
| Apr | 31° / 26° | 56 | 10 | 12.2 | 4.4 |
| May | 33° / 27° | 48 | 8.2 | 12.4 | 3.6 |
| Jun | 33° / 27° | 18 | 3.2 | 12.5 | 3.6 |
| Jul | 33° / 27° | 31 | 5.5 | 12.4 | 3.6 |
| Aug | 33° / 27° | 45 | 7.8 | 12.3 | 3.6 |
| Sep | 33° / 26° | 65 | 10.7 | 12.1 | 3.5 |
| Oct | 31° / 26° | 186 | 18.5 | 11.8 | 3.6 |
| Nov | 28° / 25° | 300 | 24.1 | 11.6 | 3.9 |
| Dec | 27° / 25° | 277 | 20.9 | 11.5 | 4.7 |
Cloud cover in Spring
The sky is clear or mostly clear about 39% of the time across spring.
Chance of precipitation in Spring
Trincomalee gets around 143 mm of rain over 25 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 14 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 48 min in early March to 12 h 30 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 6.4 kWh/m².
Hazard calendar for Trincomalee
In spring, Trincomalee overlaps its cyclone season. The full year is below, with each hazard's peak months called out.
Trincomalee sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.
Trincomalee's monsoon runs October–December, when most of the year's rain falls.
Is spring a good time to visit Trincomalee?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Trincomalee for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Trincomalee in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Trincomalee sees daytime highs around 31°C and nights near 26°C. Pack light clothes and sun protection. Worth having: rain gear. About 25 days see rain.
Sea temperature near Trincomalee in Spring
The nearest coast averages about 30°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 17 km away) is warmest in May at about 30°C and coldest in January near 27°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 28 | Warm |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Warm |
UV index in Trincomalee in Spring
Clear-sky midday UV across spring averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Trincomalee peaks around May 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 9 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 10 | 12 | 13 | 13 | 14 | 11 | 11 | 13 | 12 | 13 | 11 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 12 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 14 | Extreme |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 13 | Extreme |
| Nov | 11 | Extreme |
| Dec | 9 | Very high |
Air quality in Trincomalee in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Trincomalee is worst in May — around 28 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 22 | 21 | 24 | 27 | 28 | 21 | 20 | 20 | 21 | 25 | 24 | 22 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 22 | Moderate |
| Feb | 21 | Moderate |
| Mar | 24 | Moderate |
| Apr | 27 | Moderate |
| May | 28 | Moderate |
| Jun | 21 | Moderate |
| Jul | 20 | Moderate |
| Aug | 20 | Moderate |
| Sep | 21 | Moderate |
| Oct | 25 | Moderate |
| Nov | 24 | Moderate |
| Dec | 22 | Moderate |
Where is Trincomalee?
Trincomalee sits at 8.6°N, 81.2°E, 10 m above sea level, in Sri Lanka. The nearest listed city is Vakarai, 54 km away.
Topography around Trincomalee
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Trincomalee.
Within 3 km, the terrain around Trincomalee has only modest variations in elevation — a maximum elevation change of 78 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 161 m; within 80 km, large variations in elevation — a maximum elevation change of 684 m.
The land around Trincomalee is covered by water (62%) within 3 km, water (55%) and trees (24%) within 16 km, and trees (41%) and water (38%) within 80 km.
Sri Lanka travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type D / G / M
- 230 V · 50 Hz
- Prices
- ≈ 27% of US
- price level, 2025
- GDP per capita
- $5,002
- 2025
- Happiness
- 4.0 / 10
- World Happiness, 2025
- Safe drinking water
- 47%
- of population, 2024
- Homicide rate
- 3.3
- per 100k, 2019
- Road deaths
- 19.7
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 486
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Trincomalee (8.5778°, 81.2289°, elevation 10 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.