Mullaittivu weather in December

In December, Mullaittivu sees average daytime highs of 27°C and overnight lows near 25°C, with 249 mm of rain across 19.4 wet days and about 11.5 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 16% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 30 min at the start of December to 11 h 30 min by month's end. Set against the rest of the year, December is Mullaittivu's 6th-clearest and 6th-windiest month. For the whole year in context, see Mullaittivu's year-round climate.

Daytime high
27°
11th warmest
Overnight low
25°
3rd coldest
Rainfall
249 mm
19.4 wet days
Daylight
11 h 30 min
6:19 AM – 5:47 PM
Cloud cover
71%
6th clearest
Wind
16 km/h
6th windiest
Solar energy
4.21 kWh/m²
Travel score
5.0
out of 10

Mullaittivu is city.

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 27°C through the month.

A typical December day in Mullaittivu reaches about 27°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 26°C and 28°C. Set against its neighbours, December runs about 1°C cooler than November and on par with January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12825
22825
32825
42825
52725
62725
72725
82725
92725
102725
112725
122725
132725
142725
152725
162725
172725
182725
192725
202725
212725
222725
232725
242725
252725
262725
272725
282725
292725
302724
312724

How December really feels in Mullaittivu

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.

Mullaittivu weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 24°9711.311.56.2
Feb28° / 25°52711.76.8
Mar29° / 25°285.111.96.1
Apr31° / 26°488.412.24.6
May33° / 27°496.512.43.9
Jun32° / 27°223.412.54.1
Jul32° / 27°326.712.54.0
Aug32° / 27°478.712.34.0
Sep32° / 26°589.812.14.0
Oct30° / 26°17718.611.83.9
Nov28° / 25°30423.211.64.0
Dec27° / 25°24919.411.55.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 65%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23367
33367
43367
53268
63268
73268
83268
93169
103169
113070
123169
133169
143169
153169
163268
173268
183268
193367
203466
213565
223664
233862
243961
254060
264159
274258
284456
294456
304555
314654

Chance of precipitation in December

Any precipitation

Mullaittivu gets around 249 mm of rain over 19.4 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 62% and peaks near 70% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
170
269
368
467
566
665
765
864
964
1064
1165
1265
1365
1465
1565
1665
1765
1865
1965
2064
2163
2262
2361
2460
2558
2656
2755
2853
2952
3051
3151

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 68% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11126720
21136719
31146718
41146718
51156717
61166716
71166815
81166815
91166914
101176913
111176913
121177012
131177012
141177111
151187011
161187110
171197010
18119719
19220699
20221698
21222688
22223687
23224677
24325657
25326656
26327646
27327655
28428635
29428635
30429625
31429634

Wind in December

Winds average 16 km/h in December.

Across December, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 30 min at the start of December to 11 h 30 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 6:12 AM to 6:26 AM, and sunset from 5:41 PM to 5:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:125:41
211.56:125:42
311.56:135:42
411.56:135:42
511.56:145:43
611.56:145:43
711.56:155:43
811.56:155:44
911.56:165:44
1011.56:165:44
1111.56:175:45
1211.56:175:45
1311.56:185:46
1411.56:185:46
1511.56:195:46
1611.56:195:47
1711.56:205:47
1811.56:205:48
1911.56:215:48
2011.56:215:49
2111.56:215:49
2211.56:225:49
2311.56:225:50
2411.56:235:50
2511.56:235:51
2611.56:245:51
2711.56:245:52
2811.56:255:52
2911.56:255:53
3011.56:255:53
3111.56:265:54

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.21 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.21 kWh/m² to a high of 6.58 kWh/m² in March across the year — December's 4.21 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.2Bright
54.2Bright
64.2Bright
74.2Bright
84.2Bright
94.2Bright
104.2Bright
114.2Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
164.2Bright
174.2Bright
184.2Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.4Bright
304.4Bright
314.4Bright
Planning a trip in December

Hazard calendar for Mullaittivu

In seasonPeak

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

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

Mullaittivu's monsoon runs October–December, when most of the year's rain falls.

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

Is December a good time to visit Mullaittivu?

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

5.0
Sightseeing
4th-best month of the year
5.2
Beach & pool
11th-best month of the year

December is a reasonable time to visit Mullaittivu for sightseeing.

What to pack for Mullaittivu in December

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

In December, Mullaittivu sees daytime highs around 27°C and nights near 25°C. Pack light clothes and rain gear. About 19 days see rain.

light clothesrain gear

Sea temperature near Mullaittivu in December

The nearest coast averages about 27°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 14 km away) is warmest in May at about 30°C and coldest in January 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
Jan27Warm
Feb28Warm
Mar29Tropical
Apr30Tropical
May30Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec27Warm

UV index in Mullaittivu in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mullaittivu peaks around May 12 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMay 12UV 14Dec 23UV 9
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May14Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec9Very high

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

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1821 µg/m³Nov 1716 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb18Moderate
Mar17Moderate
Apr16Moderate
May21Moderate
Jun18Moderate
Jul17Moderate
Aug18Moderate
Sep16Moderate
Oct17Moderate
Nov15Moderate
Dec16Moderate
Location & terrain

Where is Mullaittivu?

Mullaittivu sits at 9.3°N, 80.8°E, 8 m above sea level, in Sri Lanka. The nearest listed city is Vavuniya, 67 km away.

VavuniyaPoint PedroTrincomaleeValvedditturaiJaffnaMannarAnuradhapuraVakarai

Topography around Mullaittivu

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

Within 3 km, the terrain around Mullaittivu has only modest variations in elevation — a maximum elevation change of 11 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 79 m; within 80 km, only modest variations in elevation — a maximum elevation change of 241 m.

The land around Mullaittivu is covered by water (57%) within 3 km, water (57%) and trees (27%) within 16 km, and trees (43%) and water (42%) within 80 km.

3 km
11 m
16 km
79 m
80 km
241 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Vavuniya 67 km · Point Pedro 88 km · Trincomalee 89 km · Valvedditturai 94 km · Jaffna 99 km · Mannar 107 km · Anuradhapura 115 km · Vakarai 143 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 Mullaittivu (9.268°, 80.815°, 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).