Puttalam weather in April

In April, Puttalam sees average daytime highs of 31°C and overnight lows near 27°C, with 117 mm of rain across 21.7 wet days and about 12.2 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 29% 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 18 min by month's end. Set against the rest of the year, April is Puttalam's 4th-clearest and 11th-windiest month. For the whole year in context, see Puttalam's year-round climate.

Daytime high
31°
2nd warmest
Overnight low
27°
10th coldest
Rainfall
117 mm
21.7 wet days
Daylight
12 h 12 min
6:06 AM – 6:16 PM
Cloud cover
61%
4th clearest
Wind
12 km/h
11th windiest
Solar energy
6.06 kWh/m²
Travel score
3.4
out of 10

Puttalam is large town in North 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 31°C through the month.

A typical April day in Puttalam reaches about 31°C in the afternoon and slips back to 27°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°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)
13126
23126
33126
43126
53126
63126
73126
83126
93126
103126
113126
123126
133127
143127
153127
163127
173127
183127
193127
203127
213127
223127
233127
243127
253027
263027
273027
283027
293027
303027

How April really feels in Puttalam

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.

Puttalam weather by month

How April compares with the rest of the year at a glance. April is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 24°416.311.65.9
Feb30° / 24°325.211.75.5
Mar31° / 26°4810.111.94.6
Apr31° / 27°11721.712.23.4
May30° / 27°1352212.43.6
Jun29° / 27°7916.712.54.3
Jul29° / 26°4110.112.45.2
Aug29° / 26°5011.512.35.1
Sep29° / 26°9316.5124.5
Oct29° / 26°22222.511.83.8
Nov29° / 25°24822.111.63.8
Dec29° / 25°1371411.55.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 20% of April, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16238
26139
36040
45842
55842
65644
75644
85545
95446
105347
115347
125248
135149
145149
155050
164951
174951
184852
194654
204654
214555
224456
234456
244258
254159
264159
273961
284060
293961
303961

Chance of precipitation in April

Any precipitation

Puttalam gets around 117 mm of rain over 21.7 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 71% and peaks near 75% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
160
263
365
467
568
670
771
872
973
1073
1173
1273
1373
1473
1572
1672
1772
1872
1972
2072
2172
2272
2372
2473
2573
2674
2774
2875
2975
3075

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 94% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
11981
21783
31684
41486
51387
61189
71090
8991
9892
10793
11793
12694
13595
14595
15496
16496
17496
18397
19397
20397
21397
22298
23298
24298
25298
26298
27298
28298
29298
30298

Wind in April

Winds average 12 km/h in April.

Across April, daily wind ranges from about 11 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1212calm
1312calm
1412calm
1512calm
1612light breeze
1712light breeze
1812light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2715light breeze
2815light breeze
2916light breeze
3016light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 06 min at the start of April to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over April. Sunrise moves from 6:13 AM to 6:00 AM, and sunset from 6:17 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:136:17
212.16:136:17
312.16:126:17
412.16:126:17
512.16:116:17
612.16:116:17
712.16:106:17
812.16:106:17
912.16:096:17
1012.16:096:17
1112.16:086:17
1212.16:086:16
1312.26:076:16
1412.26:076:16
1512.26:066:16
1612.26:066:16
1712.26:056:16
1812.26:056:16
1912.26:046:16
2012.26:046:16
2112.26:036:16
2212.26:036:16
2312.26:026:16
2412.26:026:16
2512.26:026:16
2612.26:016:16
2712.36:016:16
2812.36:016:16
2912.36:006:16
3012.36:006:16

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.06 kWh/m².

For context, solar energy here swings from a low near 4.56 kWh/m² to a high of 6.56 kWh/m² in March across the year — April's 6.06 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.2Intense
66.2Intense
76.2Intense
86.2Intense
96.2Intense
106.1Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.0Intense
186.0Intense
196.0Intense
206.0Intense
216.0Bright
226.0Bright
236.0Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.8Bright
295.8Bright
305.8Bright
Planning a trip in April

Hazard calendar for Puttalam

In seasonPeak

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

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

Puttalam's rainy season runs October–December, when most of the year's rain falls.

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

Is April a good time to visit Puttalam?

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

3.4
Sightseeing
12th-best month of the year
5.0
Beach & pool
9th-best month of the year

April is a weaker month for outdoor sightseeing in Puttalam.

What to pack for Puttalam in April

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

In April, Puttalam sees daytime highs around 31°C and nights near 27°C. Pack light clothes, rain gear and sun protection. About 22 days see rain.

light clothesrain gearsun protection

Sea temperature near Puttalam 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 at the nearest coast (about 24 km away) 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
Feb28Warm
Mar29Tropical
Apr30Tropical
May29Tropical
Jun28Tropical
Jul27Warm
Aug27Warm
Sep28Warm
Oct28Tropical
Nov29Tropical
Dec28Warm

UV index in Puttalam in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Puttalam peaks around April 19 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 highApr 19UV 13Dec 20UV 9
UV index (midday)Level
Jan10Very high
Feb13Extreme
Mar12Extreme
Apr13Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov11Extreme
Dec9Very high

Air quality in Puttalam 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 Puttalam is worst in March — around 30 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (October, 16 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2330 µg/m³Oct 2016 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb18Moderate
Mar30Moderate
Apr29Moderate
May25Moderate
Jun18Moderate
Jul17Moderate
Aug17Moderate
Sep19Moderate
Oct16Moderate
Nov17Moderate
Dec17Moderate
Location & terrain

Where is Puttalam?

Puttalam sits at 8.0°N, 79.8°E, 8 m above sea level, in Sri Lanka. The nearest listed city is Chilaw, 51 km away.

ChilawAnuradhapuraKurunegalaNegomboDambullaKatunayakaSigiriyaKegalle

Topography around Puttalam

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

Within 3 km, the terrain around Puttalam has only modest variations in elevation — a maximum elevation change of 30 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 93 m; within 80 km, significant variations in elevation — a maximum elevation change of 580 m.

The land around Puttalam is covered by water (45%) and trees (24%) within 3 km, trees (45%) and water (33%) within 16 km, and trees (50%) and water (38%) within 80 km.

3 km
30 m
16 km
93 m
80 km
580 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
April weather nearby: Chilaw 51 km · Anuradhapura 71 km · Kurunegala 86 km · Negombo 92 km · Dambulla 93 km · Katunayaka 97 km · Sigiriya 102 km · Kegalle 104 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 Puttalam (8.0362°, 79.8283°, 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).