Negombo weather in June

In June, Negombo sees average daytime highs of 29°C and overnight lows near 27°C, with 224 mm of rain across 27 wet days and about 12.4 hours of daylight. It is the 7th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 5% of the time in June, and the air most often feels miserable.

Daylight stretches from about 12 h 24 min at the start of June to 12 h 24 min by month's end. Set against the rest of the year, June is Negombo's 12th-clearest and 1st-windiest month. For the whole year in context, see Negombo's year-round climate.

Daytime high
29°
7th warmest
Overnight low
27°
11th coldest
Rainfall
224 mm
27 wet days
Daylight
12 h 24 min
5:58 AM – 6:23 PM
Cloud cover
82%
12th clearest
Wind
21 km/h
1st windiest
Solar energy
4.97 kWh/m²
Travel score
3.2
out of 10

Negombo is city in Sri Lanka.

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 29°C through the month.

A typical June day in Negombo reaches about 29°C in the afternoon and slips back to 27°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 29°C. Set against its neighbours, June runs on par with May and on par with July.

24°26°28°30°32°151015202530
Avg high (°C)Avg low (°C)
12927
22927
32927
42927
52927
62927
72927
82927
92927
102927
112927
122927
132927
142927
152927
162927
172927
182927
192927
202927
212926
222926
232926
242926
252926
262926
272826
282826
292826
302826

How June really feels in Negombo

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.

Negombo weather by month

How June compares with the rest of the year at a glance. June is the 7th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 24°386.411.65.8
Feb30° / 25°396.511.85.5
Mar30° / 26°7615.8124.4
Apr30° / 27°1632612.23.2
May29° / 27°25428.612.33.0
Jun29° / 27°2242712.43.2
Jul28° / 26°17624.612.43.7
Aug28° / 26°16423.912.23.9
Sep28° / 26°21525.3123.6
Oct28° / 26°31426.411.83.5
Nov29° / 25°27222.411.73.8
Dec29° / 25°13714.111.65.0

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in June, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of June, with mostly cloudy or overcast conditions the remaining 84%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11585
21585
31486
41486
51486
61486
71486
81387
91387
101387
111387
121486
131486
141684
151684
161684
171783
181783
191783
201783
211882
221882
231882
241882
251882
261882
271882
281882
291783
301783

Chance of precipitation in June

Any precipitation

Negombo gets around 224 mm of rain over 27 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 90% and peaks near 94% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
194
294
394
494
594
694
793
893
993
1092
1192
1291
1391
1490
1590
1689
1789
1888
1988
2088
2187
2287
2387
2487
2587
2686
2786
2886
2985
3085

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
9199
10199
11199
12199
13199
14199
15199
16199
17199
18199
19199
20199
21199
22199
23199
24298
25298
26298
27298
28397
29397
30496

Wind in June

Winds average 21 km/h in June, the windiest month of the year.

Across June, daily wind ranges from about 20 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
120breezy
220breezy
320breezy
420breezy
520breezy
621breezy
721breezy
821breezy
921breezy
1021breezy
1121breezy
1221breezy
1321breezy
1421breezy
1521breezy
1621breezy
1721breezy
1821breezy
1921breezy
2021breezy
2121breezy
2221breezy
2321breezy
2421breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy

Sunrise & sunset in June

DaylightNight

Daylight runs from about 12 h 24 min at the start of June to 12 h 24 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 5:57 AM to 6:01 AM, and sunset from 6:20 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:576:20
212.45:576:20
312.45:576:20
412.45:576:21
512.45:576:21
612.45:576:21
712.45:576:21
812.45:576:21
912.45:576:22
1012.45:576:22
1112.45:586:22
1212.45:586:22
1312.45:586:23
1412.45:586:23
1512.45:586:23
1612.45:586:23
1712.45:596:24
1812.45:596:24
1912.45:596:24
2012.45:596:24
2112.45:596:25
2212.46:006:25
2312.46:006:25
2412.46:006:25
2512.46:006:25
2612.46:006:26
2712.46:016:26
2812.46:016:26
2912.46:016:26
3012.46:016:26

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 4.97 kWh/m².

For context, solar energy here swings from a low near 4.69 kWh/m² to a high of 6.43 kWh/m² in March across the year — June's 4.97 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
Planning a trip in June

Hazard calendar for Negombo

In seasonPeak

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

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

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

Is June a good time to visit Negombo?

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

3.2
Sightseeing
10th-best month of the year
4.0
Beach & pool
11th-best month of the year

June is a weaker month for outdoor sightseeing in Negombo.

What to pack for Negombo in June

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

In June, Negombo sees daytime highs around 29°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection and a windbreaker. About 27 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Negombo in June

The nearest coast averages about 28°C in June — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in April at about 30°C and coldest in August 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
Jan28Warm
Feb28Tropical
Mar29Tropical
Apr30Tropical
May29Tropical
Jun28Tropical
Jul28Warm
Aug27Warm
Sep28Warm
Oct28Tropical
Nov29Tropical
Dec28Tropical

UV index in Negombo 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 Negombo peaks around February 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highFeb 17UV 13Dec 15UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar12Extreme
Apr12Extreme
May12Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Very high

Air quality in Negombo 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 Negombo is worst in March — around 30 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (August, 17 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2030 µg/m³Aug 2417 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb23Moderate
Mar30Moderate
Apr28Moderate
May24Moderate
Jun18Moderate
Jul17Moderate
Aug17Moderate
Sep17Moderate
Oct19Moderate
Nov24Moderate
Dec23Moderate
Location & terrain

Where is Negombo?

Negombo sits at 7.2°N, 79.8°E, 8 m above sea level, in Sri Lanka. The nearest listed city is Katunayaka, 7.0 km away.

HendalaWattalaPeliyagodaKelaniya

Topography around Negombo

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

Within 3 km, the terrain around Negombo has only modest variations in elevation — a maximum elevation change of 13 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 69 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,554 m.

The land around Negombo is covered by water (52%) and artificial surfaces (28%) within 3 km, water (54%) and trees (37%) within 16 km, and trees (58%) and water (36%) within 80 km.

3 km
13 m
16 km
69 m
80 km
1,554 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
June weather nearby: Katunayaka 7.0 km · Ja Ela 16 km · Kandana 19 km · Welisara 21 km · Hendala 25 km · Wattala 25 km · Peliyagoda 27 km · Kelaniya 30 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 Negombo (7.2083°, 79.8358°, elevation 8 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).