Ambalangoda weather in May

In May, Ambalangoda sees average daytime highs of 28°C and overnight lows near 26°C, with 331 mm of rain across 29.1 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 9% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 12 min at the start of May to 12 h 18 min by month's end. Set against the rest of the year, May is Ambalangoda's 7th-clearest and 5th-windiest month. For the whole year in context, see Ambalangoda's year-round climate.

Daytime high
28°
3rd warmest
Overnight low
26°
12th coldest
Rainfall
331 mm
29.1 wet days
Daylight
12 h 18 min
5:58 AM – 6:15 PM
Cloud cover
77%
7th clearest
Wind
18 km/h
5th windiest
Solar energy
5.02 kWh/m²
Travel score
3.2
out of 10

Ambalangoda is tourist town in the Southern Province of Sri Lanka.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical May day in Ambalangoda reaches about 28°C in the afternoon and slips back to 26°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, May runs on par with April and on par with June.

24°26°28°30°32°151015202531
Avg high (°C)Avg low (°C)
12927
22927
32927
42927
52927
62927
72927
82927
92927
102927
112927
122927
132927
142927
152927
162926
172826
182826
192826
202826
212826
222826
232826
242826
252826
262826
272826
282826
292826
302826
312826

How May really feels in Ambalangoda

Once humidity and wind are folded in, May averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Ambalangoda weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°5710.811.76.2
Feb28° / 25°479.811.86.2
Mar29° / 26°6515125.2
Apr29° / 26°16523.612.13.8
May28° / 26°33129.112.33.2
Jun28° / 26°30828.112.43.4
Jul28° / 26°27427.512.33.7
Aug27° / 26°24727.412.23.8
Sep27° / 26°27826.6123.8
Oct28° / 25°30926.911.93.8
Nov28° / 25°28023.711.74.2
Dec28° / 25°14918.311.65.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 74%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23169
33169
43169
53169
63169
73070
83070
92971
102971
112971
122971
132971
142971
152773
162773
172773
182674
192575
202575
212377
222377
232278
242278
252080
262080
271981
281882
291783
301783
311783

Chance of precipitation in May

Any precipitation

Ambalangoda gets around 331 mm of rain over 29.1 wet days in May, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 94% and peaks near 96% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
190
290
390
491
591
691
792
892
992
1092
1193
1293
1393
1493
1594
1694
1794
1895
1995
2095
2195
2295
2396
2496
2596
2696
2796
2896
2996
3096
3196

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the miserable band about 97% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1595
2595
3496
4496
5496
6496
7496
8496
9496
10496
11496
12397
13397
14397
15397
16397
17397
18397
19397
20298
21298
22298
23298
24298
25397
26397
27397
28397
29397
30496
31496

Wind in May

Winds average 18 km/h in May.

Across May, daily wind ranges from about 13 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
314light breeze
414light breeze
514light breeze
615light breeze
715light breeze
815light breeze
916light breeze
1016light breeze
1116light breeze
1217light breeze
1317light breeze
1417light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1919light breeze
2019light breeze
2119light breeze
2219light breeze
2319light breeze
2420light breeze
2520light breeze
2620light breeze
2720breezy
2820breezy
2920breezy
3020breezy
3121breezy

Sunrise & sunset in May

DaylightNight

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

Days grow by about 6 minutes over May. Sunrise moves from 6:01 AM to 5:57 AM, and sunset from 6:13 PM to 6:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:016:13
212.26:006:13
312.26:006:14
412.26:006:14
512.25:596:14
612.25:596:14
712.25:596:14
812.25:596:14
912.35:596:14
1012.35:586:14
1112.35:586:14
1212.35:586:14
1312.35:586:14
1412.35:586:14
1512.35:586:14
1612.35:586:15
1712.35:576:15
1812.35:576:15
1912.35:576:15
2012.35:576:15
2112.35:576:15
2212.35:576:15
2312.35:576:16
2412.35:576:16
2512.35:576:16
2612.35:576:16
2712.35:576:16
2812.35:576:17
2912.35:576:17
3012.35:576:17
3112.35:576:17

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.02 kWh/m².

For context, solar energy here swings from a low near 4.68 kWh/m² to a high of 6.3 kWh/m² in March across the year — May's 5.02 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in May

Hazard calendar for Ambalangoda

In seasonPeak

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

Ambalangoda 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 May a good time to visit Ambalangoda?

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

3.2
Sightseeing
12th-best month of the year
3.9
Beach & pool
11th-best month of the year

May is a weaker month for outdoor sightseeing in Ambalangoda.

What to pack for Ambalangoda in May

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

In May, Ambalangoda sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 29 days see rain.

light clothesrain gearsun protection

Sea temperature near Ambalangoda in May

The nearest coast averages about 29°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 15 km away) is warmest in April at about 30°C and coldest in July near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Tropical
Mar29Tropical
Apr30Tropical
May29Tropical
Jun28Tropical
Jul28Warm
Aug28Warm
Sep28Warm
Oct28Tropical
Nov29Tropical
Dec28Tropical

UV index in Ambalangoda in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Ambalangoda peaks around April 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 highApr 17UV 13Dec 21UV 10
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar12Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov11Extreme
Dec10Very high

Air quality in Ambalangoda in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Ambalangoda is worst in January — around 35 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (September, 16 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJan 1834 µg/m³Sep 1316 µg/m³
PM2.5 (µg/m³)Level
Jan35Moderate
Feb31Moderate
Mar25Moderate
Apr21Moderate
May20Moderate
Jun18Moderate
Jul17Moderate
Aug17Moderate
Sep16Moderate
Oct18Moderate
Nov25Moderate
Dec30Moderate
Location & terrain

Where is Ambalangoda?

Ambalangoda sits at 6.2°N, 80.1°E, 13 m above sea level, in Sri Lanka. The nearest listed city is Bentota, 22 km away.

GalleBeruwalaUnawatunaKalutaraWeligamaMirissaPanadura

Topography around Ambalangoda

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

Within 3 km, the terrain around Ambalangoda has only modest variations in elevation — a maximum elevation change of 30 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 180 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,145 m.

The land around Ambalangoda is covered by water (49%) and trees (41%) within 3 km, water (53%) and trees (44%) within 16 km, and trees (55%) and water (43%) within 80 km.

3 km
30 m
16 km
180 m
80 km
2,145 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Bentota 22 km · Galle 27 km · Beruwala 28 km · Unawatuna 32 km · Kalutara 40 km · Weligama 51 km · Mirissa 55 km · Panadura 56 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 Ambalangoda (6.2355°, 80.0538°, elevation 13 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).