Trincomalee weather in June

In June, Trincomalee sees average daytime highs of 33°C and overnight lows near 27°C, with 18 mm of rain across 3.2 wet days and about 12.5 hours of daylight. It is the 1st-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 9% of the time in June, and the air most often feels oppressive.

Daylight stretches from about 12 h 30 min at the start of June to 12 h 30 min by month's end. Set against the rest of the year, June is Trincomalee's 11th-clearest and 1st-windiest month. For the whole year in context, see Trincomalee's year-round climate.

Daytime high
33°
1st warmest
Overnight low
27°
12th coldest
Rainfall
18 mm
3.2 wet days
Daylight
12 h 30 min
5:50 AM – 6:20 PM
Cloud cover
78%
11th clearest
Wind
24 km/h
1st windiest
Solar energy
5.85 kWh/m²
Travel score
3.6
out of 10

Trincomalee is city in Sri Lanka.

Density
14,456/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical June day in Trincomalee reaches about 33°C in the afternoon and slips back to 27°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 34°C. Set against its neighbours, June runs on par with May and on par with July.

25°28°30°33°35°151015202530
Avg high (°C)Avg low (°C)
13327
23327
33327
43327
53327
63327
73327
83327
93327
103327
113327
123327
133327
143327
153327
163327
173327
183327
193327
203327
213327
223327
233327
243327
253327
263327
273327
283327
293327
303327

How June really feels in Trincomalee

Once humidity and wind are folded in, June averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
30
1 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in June is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Trincomalee weather by month

How June compares with the rest of the year at a glance. June is the 1st-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 25°12614.511.65.8
Feb28° / 25°739.711.76.3
Mar29° / 25°407.211.95.8
Apr31° / 26°561012.24.4
May33° / 27°488.212.43.6
Jun33° / 27°183.212.53.6
Jul33° / 27°315.512.43.6
Aug33° / 27°457.812.33.6
Sep33° / 26°6510.712.13.5
Oct31° / 26°18618.511.83.6
Nov28° / 25°30024.111.63.9
Dec27° / 25°27720.911.54.7

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 14% of June, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13070
23070
32872
42773
52575
62476
72377
82278
92179
102179
112080
121981
131981
142080
151981
161981
172179
182278
192278
202377
212377
222377
232377
242476
252476
262476
272377
282476
292476
302476

Chance of precipitation in June

Any precipitation

Trincomalee gets around 18 mm of rain over 3.2 wet days in June, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 11% and peaks near 17% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
117
217
316
416
515
615
714
814
913
1012
1111
1210
139
149
158
168
177
187
197
207
217
227
237
248
258
269
279
2810
2910
3011

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

Most of June feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, June lands in the oppressive band about 90% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
17129
27327
37525
47723
57921
68119
78218
88416
98614
108713
118911
129010
13919
14928
15937
16946
17955
18955
19964
20964
21964
22973
23973
24973
25982
26982
27982
28982
29982
30982

Wind in June

Winds average 24 km/h in June, the windiest month of the year.

Across June, daily wind ranges from about 23 km/h on the calmest days to 24 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202530
Wind speed (km/h)Feels
123breezy
223breezy
323breezy
423breezy
523breezy
624breezy
724breezy
824breezy
924breezy
1024breezy
1124breezy
1224breezy
1324breezy
1424breezy
1524breezy
1624breezy
1724breezy
1824breezy
1924breezy
2024breezy
2124breezy
2224breezy
2324breezy
2424breezy
2524breezy
2624breezy
2724breezy
2823breezy
2923breezy
3023breezy

Sunrise & sunset in June

DaylightNight

Daylight runs from about 12 h 30 min at the start of June to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over June. Sunrise moves from 5:49 AM to 5:53 AM, and sunset from 6:16 PM to 6:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:496:16
212.55:496:17
312.55:496:17
412.55:496:17
512.55:496:17
612.55:496:18
712.55:496:18
812.55:496:18
912.55:496:18
1012.55:506:19
1112.55:506:19
1212.55:506:19
1312.55:506:19
1412.55:506:20
1512.55:506:20
1612.55:506:20
1712.55:516:20
1812.55:516:21
1912.55:516:21
2012.55:516:21
2112.55:516:21
2212.55:526:22
2312.55:526:22
2412.55:526:22
2512.55:526:22
2612.55:526:22
2712.55:536:23
2812.55:536:23
2912.55:536:23
3012.55:536:23

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.85 kWh/m².

For context, solar energy here swings from a low near 4.16 kWh/m² to a high of 6.51 kWh/m² in March across the year — June's 5.85 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.0Bright
36.0Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
Planning a trip in June

Hazard calendar for Trincomalee

In seasonPeak

In June, Trincomalee sits inside 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.

Cyclone
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is June a good time to visit Trincomalee?

Our two travel scores rate June for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.6
Sightseeing
7th-best month of the year
6.7
Beach & pool
3rd-best month of the year

June is a weaker month for outdoor sightseeing in Trincomalee. The water and warmth also suit a beach or pool day.

What to pack for Trincomalee in June

From June's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In June, Trincomalee sees daytime highs around 33°C and nights near 27°C. Pack light clothes. Worth having: sun protection and a windbreaker. About 3 days see rain.

light clothessun protectiona windbreaker

Sea temperature near Trincomalee in June

The nearest coast averages about 30°C in June — 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.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Warm
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Trincomalee in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 11 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMay 10UV 13Dec 20UV 9
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May14Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep12Extreme
Oct13Extreme
Nov11Extreme
Dec9Very high

Air quality in Trincomalee in June

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where June 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).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1028 µg/m³Jul 2120 µg/m³
PM2.5 (µg/m³)Level
Jan22Moderate
Feb21Moderate
Mar24Moderate
Apr27Moderate
May28Moderate
Jun21Moderate
Jul20Moderate
Aug20Moderate
Sep21Moderate
Oct25Moderate
Nov24Moderate
Dec22Moderate
Location & terrain

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.

VakaraiPolonnaruwaVavuniyaSigiriyaMullaittivuAnuradhapuraEravur TownDambulla

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.

3 km
78 m
16 km
161 m
80 km
684 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
June weather nearby: Vakarai 54 km · Polonnaruwa 75 km · Vavuniya 83 km · Sigiriya 87 km · Mullaittivu 89 km · Anuradhapura 94 km · Eravur Town 98 km · Dambulla 102 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
Buddhist 70%Hindu 13%Muslim 10%Roman Catholic 6%

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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).