Kelaniya weather in April

In April, Kelaniya sees average daytime highs of 32°C and overnight lows near 25°C, with 192 mm of rain across 25.4 wet days and about 12.1 hours of daylight. It is the 3rd-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 12% 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 Kelaniya's 5th-clearest and 10th-windiest month. For the whole year in context, see Kelaniya's year-round climate.

Daytime high
32°
3rd warmest
Overnight low
25°
10th coldest
Rainfall
192 mm
25.4 wet days
Daylight
12 h 12 min
6:06 AM – 6:15 PM
Cloud cover
70%
5th clearest
Wind
7 km/h
10th windiest
Solar energy
5.57 kWh/m²
Travel score
2.5
out of 10

Kelaniya is suburb in Western Province, 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 32°C through the month.

A typical April day in Kelaniya reaches about 32°C in the afternoon and slips back to 25°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, April runs about 1°C cooler than March and about 1°C warmer than May.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13325
23325
33325
43325
53325
63325
73225
83225
93225
103225
113225
123225
133225
143225
153225
163225
173225
183225
193225
203225
213225
223225
233225
243225
253225
263225
273225
283225
293125
303125

How April really feels in Kelaniya

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
29 feel dangerously hot (≥ 39°C)
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.

Kelaniya weather by month

How April compares with the rest of the year at a glance. April is the 3rd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°668.411.64.4
Feb33° / 24°658.611.83.8
Mar33° / 25°9414.8123.1
Apr32° / 25°19225.412.12.5
May31° / 26°26429.412.32.5
Jun30° / 25°27928.712.42.7
Jul29° / 25°24529.212.42.9
Aug29° / 25°21929.112.22.9
Sep29° / 25°24727.8122.9
Oct30° / 24°35928.211.82.9
Nov30° / 24°33723.911.73.2
Dec30° / 23°17816.111.64.1

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% 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 64%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14852
24852
34654
44654
54555
64456
74456
84357
94258
104258
114060
124060
134060
143961
153862
163664
173565
183367
193268
203268
213070
222971
232872
242773
252674
262575
272476
282476
292377
302278

Chance of precipitation in April

Any precipitation

Kelaniya gets around 192 mm of rain over 25.4 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 84% and peaks near 92% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
168
270
372
474
575
677
778
879
981
1082
1183
1283
1384
1485
1586
1686
1787
1887
1988
2088
2189
2289
2389
2490
2590
2690
2791
2891
2992
3092

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 73% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
15644
25446
35248
44951
54753
64555
74357
84159
93961
103763
113565
123367
133169
142872
152674
162476
172278
182080
191981
201783
211585
221486
231288
241189
25991
26892
27793
28694
29694
30595

Wind in April

Winds average 7 km/h in April.

Across April, daily wind ranges from about 6 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
288calm
298calm
308calm

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 6:13 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)
112.16:136:17
212.16:136:17
312.16:126:16
412.16:126:16
512.16:116:16
612.16:116:16
712.16:106:16
812.16:106:16
912.16:096:16
1012.16:096:16
1112.16:086:16
1212.16:086:15
1312.16:076:15
1412.16:076:15
1512.16:066:15
1612.26:066:15
1712.26:066:15
1812.26:056:15
1912.26:056:15
2012.26:046:15
2112.26:046:15
2212.26:036:15
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 5.57 kWh/m².

For context, solar energy here swings from a low near 4.43 kWh/m² to a high of 6.15 kWh/m² in March across the year — April's 5.57 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.4Bright
235.4Bright
245.4Bright
255.3Bright
265.3Bright
275.3Bright
285.2Bright
295.2Bright
305.2Bright
Planning a trip in April

Hazard calendar for Kelaniya

In seasonPeak

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

Kelaniya 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 Kelaniya?

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

2.5
Sightseeing
11th-best month of the year
4.1
Beach & pool
6th-best month of the year

April is a weaker month for outdoor sightseeing in Kelaniya.

What to pack for Kelaniya in April

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

In April, Kelaniya sees daytime highs around 32°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near Kelaniya 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 Kelaniya 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 Kelaniya peaks around September 10 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 highSep 10UV 13Dec 15UV 10
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar12Extreme
Apr12Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Very high

Air quality in Kelaniya 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 Kelaniya is worst in January — around 84 µg/m³ PM2.5 (unhealthy), about 2.8× the cleanest month (July, 29 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyJan 1483 µg/m³Jul 2129 µg/m³
PM2.5 (µg/m³)Level
Jan84Unhealthy
Feb78Unhealthy
Mar73Unhealthy
Apr62Unhealthy
May44Poor
Jun31Moderate
Jul29Moderate
Aug30Moderate
Sep35Poor
Oct52Poor
Nov74Unhealthy
Dec81Unhealthy
Location & terrain

Where is Kelaniya?

Kelaniya sits at 7.0°N, 79.9°E, 10 m above sea level, in Sri Lanka. The nearest listed city is Mulleriyawa, 3.0 km away.

Topography around Kelaniya

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

Within 3 km, the terrain around Kelaniya has only modest variations in elevation — a maximum elevation change of 35 m around an average of 9 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 179 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,145 m.

The land around Kelaniya is covered by trees (48%) and artificial surfaces (47%) within 3 km, trees (47%), artificial surfaces (24%) and water (23%) within 16 km, and trees (62%) and water (34%) within 80 km.

3 km
35 m
16 km
179 m
80 km
2,145 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Mulleriyawa 3.0 km · Kotikawatta 3.0 km · Peliyagoda 4.0 km · Kolonnawa 5.0 km · Wattala 5.0 km · Hendala 6.0 km · Battaramulla South 7.0 km · Pita Kotte 8.0 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 Kelaniya (6.9553°, 79.922°, 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).