Negombo weather in April

In April, Negombo sees average daytime highs of 30°C and overnight lows near 27°C, with 163 mm of rain across 26 wet days and about 12.2 hours of daylight. It is the 2nd-warmest and 8th-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 21% of the time in April, and the air most often feels miserable.

Daylight stretches from about 12 h 06 min at the start of April to 12 h 12 min by month's end. Set against the rest of the year, April is Negombo's 4th-clearest and 11th-windiest month. For the whole year in context, see Negombo's year-round climate.

Daytime high
30°
2nd warmest
Overnight low
27°
11th coldest
Rainfall
163 mm
26 wet days
Daylight
12 h 12 min
6:06 AM – 6:16 PM
Cloud cover
65%
4th clearest
Wind
10 km/h
11th windiest
Solar energy
5.87 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 April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical April day in Negombo reaches about 30°C in the afternoon and slips back to 27°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 31°C. Set against its neighbours, April runs on par with March and on par with May.

25°28°30°33°35°151015202530
Avg high (°C)Avg low (°C)
13026
23026
33026
43026
53026
63026
73026
83026
93026
103026
113026
123026
133026
143026
153026
163027
173027
183027
193027
203027
213027
223027
233027
243027
253027
263027
273027
283027
293027
303027

How April really feels in Negombo

Once humidity and wind are folded in, April 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 April is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Negombo weather by month

How April compares with the rest of the year at a glance. April is the 2nd-warmest and 8th-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 April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 23% of April, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15446
25446
35347
45149
55050
65050
75050
84951
94951
104852
114852
124654
134654
144654
154555
164456
174357
184357
194258
204060
214060
223862
233763
243763
253664
263565
273466
283466
293466
303367

Chance of precipitation in April

Any precipitation

Negombo gets around 163 mm of rain over 26 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 86% and peaks near 90% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
176
278
380
481
582
683
784
884
985
1085
1185
1286
1386
1486
1586
1686
1787
1887
1987
2087
2188
2288
2388
2488
2589
2689
2789
2890
2990
3090

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the miserable band about 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
11288
21189
31090
4991
5991
6892
7793
8793
9793
10694
11694
12595
13595
14595
15496
16496
17496
18397
19397
20397
21397
22298
23298
24298
25298
26298
27298
28298
29298
30298

Wind in April

Winds average 10 km/h in April.

Across April, daily wind ranges from about 10 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2412calm
2512calm
2612light breeze
2712light breeze
2813light breeze
2913light breeze
3013light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 06 min at the start of April to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over April. Sunrise moves from 6:14 AM to 6:01 AM, and sunset from 6:17 PM to 6:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:146:17
212.16:136:17
312.16:126:17
412.16:126:17
512.16:116:17
612.16:116:17
712.16:106:16
812.16:106:16
912.16:096:16
1012.16:096:16
1112.16:086:16
1212.16:086:16
1312.16:086:16
1412.16:076:16
1512.26:076:16
1612.26:066:16
1712.26:066:16
1812.26:056:16
1912.26:056:15
2012.26:046:15
2112.26:046:15
2212.26:046:15
2312.26:036:15
2412.26:036:15
2512.26:026:15
2612.26:026:15
2712.26:026:15
2812.26:016:15
2912.26:016:15
3012.26:016:15

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.87 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 — April's 5.87 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.1Intense
46.1Intense
56.1Intense
66.0Intense
76.0Intense
86.0Intense
96.0Bright
106.0Bright
116.0Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.7Bright
245.7Bright
255.7Bright
265.6Bright
275.6Bright
285.6Bright
295.5Bright
305.5Bright
Planning a trip in April

Hazard calendar for Negombo

In seasonPeak

In April, 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 April a good time to visit Negombo?

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

3.2
Sightseeing
10th-best month of the year
4.4
Beach & pool
8th-best month of the year

April is a weaker month for outdoor sightseeing in Negombo.

What to pack for Negombo in April

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

In April, Negombo sees daytime highs around 30°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

Sea temperature near Negombo in April

The nearest coast averages about 30°C in April — 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 April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 12 (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 April

GoodModeratePoorUnhealthyVery unhealthy

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