Jaffna weather in June

In June, Jaffna sees average daytime highs of 30°C and overnight lows near 28°C, with 27 mm of rain across 5.5 wet days and about 12.6 hours of daylight. It is the 3rd-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 11% of the time in June, and the air most often feels miserable.

Daylight stretches from about 12 h 30 min at the start of June to 12 h 36 min by month's end. Set against the rest of the year, June is Jaffna's 10th-clearest and 1st-windiest month. For the whole year in context, see Jaffna's year-round climate.

Daytime high
30°
3rd warmest
Overnight low
28°
11th coldest
Rainfall
27 mm
5.5 wet days
Daylight
12 h 36 min
5:53 AM – 6:27 PM
Cloud cover
77%
10th clearest
Wind
30 km/h
1st windiest
Solar energy
5.94 kWh/m²
Travel score
5.2
out of 10

Jaffna is capital city of the Northern Province of Sri Lanka.

Density
8,371/km²
people per km²
Founded
1621

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 30°C through the month.

A typical June day in Jaffna reaches about 30°C in the afternoon and slips back to 28°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 30°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)
13028
23028
33028
43028
53028
63028
73028
83028
93028
103028
113028
123028
133028
143028
153028
163028
173028
183028
193028
203028
213028
223028
233028
243028
253028
263028
273028
283028
293028
303028

How June really feels in Jaffna

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
heat index over the day's high
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.

Jaffna weather by month

How June compares with the rest of the year at a glance. June is the 3rd-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 25°626.711.57.0
Feb28° / 25°254.211.77.4
Mar29° / 26°223.411.96.5
Apr30° / 28°457.712.25.2
May30° / 28°587.612.45.0
Jun30° / 28°275.512.65.2
Jul30° / 28°339.212.54.9
Aug29° / 28°4810.512.35.0
Sep29° / 27°671212.14.9
Oct29° / 27°20820.911.84.2
Nov28° / 26°3132211.64.5
Dec27° / 25°20016.311.45.5

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 13% of June, with mostly cloudy or overcast conditions the remaining 76%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13862
23664
33466
43268
53070
62872
72773
82674
92476
102278
112179
122179
131981
141981
151882
161882
171981
181981
192179
202179
212179
222278
232278
242377
252377
262377
272377
282377
292377
302278

Chance of precipitation in June

Any precipitation

Jaffna gets around 27 mm of rain over 5.5 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 19% and peaks near 21% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
120
220
321
421
521
621
720
820
920
1020
1120
1219
1319
1419
1519
1618
1718
1818
1918
2018
2117
2217
2317
2417
2517
2617
2718
2818
2918
3019

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the miserable band about 99% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
1199
2199
3199
4199
5199
6199
7199
8199
90100
100100
110100
120100
130100
140100
150100
160100
170100
180100
190100
200100
21199
22199
23199
24199
25199
26199
27298
28298
29298
30298

Wind in June

Winds average 30 km/h in June, the windiest month of the year.

Across June, daily wind ranges from about 28 km/h on the calmest days to 31 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202530
Wind speed (km/h)Feels
131windy
231windy
331windy
431windy
531windy
631windy
731windy
831windy
931windy
1031windy
1131windy
1231windy
1331windy
1431windy
1531windy
1631windy
1731windy
1830windy
1930windy
2030windy
2130windy
2230windy
2330windy
2430windy
2529windy
2629windy
2729windy
2829breezy
2929breezy
3028breezy

Sunrise & sunset in June

DaylightNight

Daylight runs from about 12 h 30 min at the start of June to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over June. Sunrise moves from 5:52 AM to 5:56 AM, and sunset from 6:23 PM to 6:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:526:23
212.55:526:23
312.55:526:24
412.55:526:24
512.55:526:24
612.55:526:24
712.55:526:25
812.55:526:25
912.55:526:25
1012.65:536:26
1112.65:536:26
1212.65:536:26
1312.65:536:26
1412.65:536:27
1512.65:536:27
1612.65:536:27
1712.65:546:27
1812.65:546:28
1912.65:546:28
2012.65:546:28
2112.65:546:28
2212.65:556:28
2312.65:556:29
2412.65:556:29
2512.65:556:29
2612.65:556:29
2712.65:566:29
2812.65:566:30
2912.65:566:30
3012.65:566:30

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.94 kWh/m².

For context, solar energy here swings from a low near 4.22 kWh/m² to a high of 6.58 kWh/m² in March across the year — June's 5.94 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.0Intense
56.0Intense
66.0Intense
76.0Bright
86.0Bright
96.0Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
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 Jaffna

In seasonPeak

In June, Jaffna sits inside its cyclone season. The full year is below, with each hazard's peak months called out.

Jaffna sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Jaffna'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 Jaffna?

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

5.2
Sightseeing
5th-best month of the year
7.1
Beach & pool
5th-best month of the year

June is a reasonable time to visit Jaffna for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Jaffna in June

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

In June, Jaffna sees daytime highs around 30°C and nights near 28°C. Pack light clothes and a windbreaker. Worth having: sun protection. About 6 days see rain.

light clothesa windbreakersun protection

Sea temperature near Jaffna in June

The nearest coast averages about 29°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 14 km away) is warmest in April 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
Feb27Warm
Mar29Tropical
Apr30Tropical
May30Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Jaffna 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 Jaffna peaks around August 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 at about 8 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 17UV 13Jan 11UV 8
UV index (midday)Level
Jan8Very high
Feb12Extreme
Mar12Extreme
Apr13Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec9Very high

Air quality in Jaffna 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 Jaffna is worst in May — around 24 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1623 µg/m³Sep 1817 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb19Moderate
Mar20Moderate
Apr20Moderate
May24Moderate
Jun19Moderate
Jul18Moderate
Aug19Moderate
Sep17Moderate
Oct18Moderate
Nov17Moderate
Dec19Moderate
Location & terrain

Where is Jaffna?

Jaffna sits at 9.7°N, 80.0°E, 7 m above sea level, in Sri Lanka. The nearest listed city is Valvedditturai, 24 km away.

ValvedditturaiPoint PedroMannarMullaittivuVavuniyaAnuradhapuraTrincomaleePuttalam

Topography around Jaffna

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Jaffna.

Within 3 km, the terrain around Jaffna has only modest variations in elevation — a maximum elevation change of 16 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 22 m; within 80 km, only modest variations in elevation — a maximum elevation change of 99 m.

The land around Jaffna is covered by water (45%), trees (26%) and artificial surfaces (22%) within 3 km, water (46%) and trees (24%) within 16 km, and water (77%) within 80 km.

3 km
16 m
16 km
22 m
80 km
99 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
June weather nearby: Valvedditturai 24 km · Point Pedro 30 km · Mannar 77 km · Mullaittivu 99 km · Vavuniya 115 km · Anuradhapura 157 km · Trincomalee 181 km · Puttalam 183 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 Jaffna (9.6684°, 80.0074°, elevation 7 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).