Ambalangoda weather in December

In December, Ambalangoda sees average daytime highs of 28°C and overnight lows near 25°C, with 149 mm of rain across 18.3 wet days and about 11.6 hours of daylight. It is the 6th-warmest and 9th-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 22% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 42 min at the start of December to 11 h 36 min by month's end. Set against the rest of the year, December is Ambalangoda's 5th-clearest and 9th-windiest month. For the whole year in context, see Ambalangoda's year-round climate.

Daytime high
28°
6th warmest
Overnight low
25°
2nd coldest
Rainfall
149 mm
18.3 wet days
Daylight
11 h 36 min
6:17 AM – 5:55 PM
Cloud cover
69%
5th clearest
Wind
9 km/h
9th windiest
Solar energy
4.84 kWh/m²
Travel score
5.1
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 December

Average highAverage lowShaded bands: 10–90% of days

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

A typical December day in Ambalangoda reaches about 28°C in the afternoon and slips back to 25°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 28°C. Set against its neighbours, December runs on par with November and on par with January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12825
22825
32825
42825
52825
62825
72825
82825
92825
102825
112825
122825
132825
142825
152825
162825
172825
182825
192825
202825
212825
222825
232825
242825
252825
262825
272825
282825
292825
302825
312825

How December really feels in Ambalangoda

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

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Ambalangoda weather by month

How December compares with the rest of the year at a glance. December is the 6th-warmest and 9th-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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 62%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23367
33565
43565
53565
63664
73565
83565
93565
103565
113565
123565
133565
143565
153565
163664
173664
183664
193664
203862
213862
223862
233961
244060
254159
264258
274357
284456
294555
304654
314654

Chance of precipitation in December

Any precipitation

Ambalangoda gets around 149 mm of rain over 18.3 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 59% and peaks near 69% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
169
268
367
467
566
665
765
865
964
1064
1164
1264
1364
1463
1563
1662
1762
1861
1960
2059
2158
2256
2355
2453
2552
2650
2748
2847
2945
3044
3143

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 92% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
12917
22917
32917
42917
53916
63916
73916
83916
93925
103925
113934
123934
133943
143943
153943
164942
174942
184942
195932
205932
216931
226931
237921
248911
258902
269892
279892
2810882
2910882
3010882
3111872

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 42 min at the start of December to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:10 AM to 6:24 AM, and sunset from 5:49 PM to 6:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:105:49
211.76:105:50
311.76:115:50
411.76:115:50
511.76:115:51
611.76:125:51
711.76:125:51
811.66:135:52
911.66:135:52
1011.66:145:53
1111.66:145:53
1211.66:155:53
1311.66:155:54
1411.66:165:54
1511.66:165:55
1611.66:175:55
1711.66:175:56
1811.66:185:56
1911.66:185:57
2011.66:195:57
2111.66:195:57
2211.66:205:58
2311.66:205:58
2411.66:215:59
2511.66:215:59
2611.66:216:00
2711.66:226:00
2811.66:226:01
2911.66:236:01
3011.66:236:02
3111.66:246:02

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.84 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 — December's 4.84 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.9Bright
244.9Bright
254.9Bright
265.0Bright
275.0Bright
285.0Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in December

Hazard calendar for Ambalangoda

In seasonPeak

In December, 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 December a good time to visit Ambalangoda?

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

5.1
Sightseeing
4th-best month of the year
5.4
Beach & pool
4th-best month of the year

December is a reasonable time to visit Ambalangoda for sightseeing.

What to pack for Ambalangoda in December

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

In December, Ambalangoda sees daytime highs around 28°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

Sea temperature near Ambalangoda in December

The nearest coast averages about 28°C in December — 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 December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 10 (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 December

GoodModeratePoorUnhealthyVery unhealthy

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