Beliatta weather in December

In December, Beliatta sees average daytime highs of 29°C and overnight lows near 24°C, with 180 mm of rain across 20.9 wet days and about 11.7 hours of daylight. It is the 7th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 17% 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 42 min by month's end. Set against the rest of the year, December is Beliatta's 5th-clearest and 9th-windiest month. For the whole year in context, see Beliatta's year-round climate.

Daytime high
29°
7th warmest
Overnight low
24°
3rd coldest
Rainfall
180 mm
20.9 wet days
Daylight
11 h 42 min
6:14 AM – 5:53 PM
Cloud cover
72%
5th clearest
Wind
11 km/h
9th windiest
Solar energy
4.88 kWh/m²
Travel score
4.2
out of 10

Beliatta is town in Southern Province, 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 29°C through the month.

A typical December day in Beliatta reaches about 29°C in the afternoon and slips back to 24°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, December runs on par with November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12924
22924
32924
42924
52924
62924
72924
82924
92924
102924
112924
122924
132924
142924
152924
162924
172924
182924
192924
202924
212924
222924
232924
242924
252924
262924
272924
282924
292924
302924
312924

How December really feels in Beliatta

Once humidity and wind are folded in, December averages 9 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
9
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Beliatta weather by month

How December compares with the rest of the year at a glance. December is the 7th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 24°7512.711.74.9
Feb30° / 24°6312.211.84.6
Mar30° / 25°9517.9124.1
Apr30° / 25°16924.812.13.2
May29° / 26°16225.312.33.3
Jun29° / 25°1162312.33.7
Jul29° / 25°1012212.34.0
Aug28° / 25°10722.412.24.0
Sep29° / 25°14422.4123.9
Oct29° / 24°21224.711.93.7
Nov29° / 24°27625.211.73.5
Dec29° / 24°18020.911.74.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% 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 67%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12872
23070
33070
43070
53070
63070
72971
83070
93169
103169
113169
123169
133169
143070
153169
163169
173169
183268
193367
203367
213565
223565
233664
243664
253763
263763
273961
283961
293961
304060
314159

Chance of precipitation in December

Any precipitation

Beliatta gets around 180 mm of rain over 20.9 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 67% and peaks near 80% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
180
279
377
476
576
675
774
874
973
1073
1172
1272
1371
1471
1571
1670
1770
1869
1968
2067
2166
2264
2362
2461
2559
2657
2756
2854
2953
3052
3150

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 87% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
118613
228513
328513
428513
528513
638512
738512
838611
938611
1038710
1138710
123889
133898
143898
153907
164897
174906
184906
194915
205905
215905
226904
237894
247894
258884
269874
279874
2810864
2910864
3011863
3111863

Wind in December

Winds average 11 km/h in December.

Across December, daily wind ranges from about 10 km/h on the calmest days to 11 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
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in December

DaylightNight

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

Days grow by about 0 minutes over December. Sunrise moves from 6:07 AM to 6:21 AM, and sunset from 5:47 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:075:47
211.76:075:47
311.76:085:48
411.76:085:48
511.76:085:48
611.76:095:49
711.76:095:49
811.76:105:49
911.76:105:50
1011.76:115:50
1111.76:115:51
1211.76:125:51
1311.76:125:51
1411.76:135:52
1511.76:135:52
1611.76:145:53
1711.76:145:53
1811.66:155:54
1911.66:155:54
2011.66:165:55
2111.66:165:55
2211.66:175:56
2311.66:175:56
2411.66:185:56
2511.66:185:57
2611.66:185:57
2711.76:195:58
2811.76:195:58
2911.76:205:59
3011.76:205:59
3111.76:216:00

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.88 kWh/m².

For context, solar energy here swings from a low near 4.81 kWh/m² to a high of 6.47 kWh/m² in March across the year — December's 4.88 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
224.9Bright
234.9Bright
244.9Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in December

Hazard calendar for Beliatta

In seasonPeak

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

Beliatta 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 Beliatta?

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

4.2
Sightseeing
3rd-best month of the year
5.1
Beach & pool
4th-best month of the year

December is a reasonable time to visit Beliatta for sightseeing.

What to pack for Beliatta in December

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

In December, Beliatta sees daytime highs around 29°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

Sea temperature near Beliatta 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 23 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 Beliatta 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 Beliatta peaks around April 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 10 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeApr 17UV 14Jan 10UV 10
UV index (midday)Level
Jan10Very high
Feb13Extreme
Mar13Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec10Very high

Air quality in Beliatta 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 Beliatta is worst in November — around 21 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateNov 2121 µg/m³Sep 1416 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb19Moderate
Mar20Moderate
Apr20Moderate
May20Moderate
Jun17Moderate
Jul17Moderate
Aug17Moderate
Sep16Moderate
Oct18Moderate
Nov21Moderate
Dec20Moderate
Location & terrain

Where is Beliatta?

Beliatta sits at 6.0°N, 80.7°E, 39 m above sea level, in Sri Lanka. The nearest listed city is Devinuwara, 21 km away.

MataraMirissaAmbalantotaWeligamaHambantotaUnawatunaGalle

Topography around Beliatta

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

Within 3 km, the terrain around Beliatta has only modest variations in elevation — a maximum elevation change of 118 m around an average of 38 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 275 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,192 m.

The land around Beliatta is covered by trees (82%) within 3 km, trees (62%) and water (27%) within 16 km, and trees (57%) and water (35%) within 80 km.

3 km
118 m
16 km
275 m
80 km
2,192 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Devinuwara 21 km · Matara 25 km · Mirissa 32 km · Ambalantota 33 km · Weligama 34 km · Hambantota 43 km · Unawatuna 53 km · Galle 58 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 Beliatta (6.0496°, 80.7325°, elevation 39 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).