Climate and average weather in Mullaittivu

In Mullaittivu, the weather is oppressive, hot, wet, and partly cloudy and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around November.

Best: late December to late March

Over the course of the year, the temperature in Mullaittivu typically varies from 24°C to 33°C, and is rarely below 23°C or above 34°C. May is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Mullaittivu for warm-weather activities is from late December to late March.

Hottest
May
33°
Coldest
Jan
24°
Wettest
Nov
304 mm
Driest
Jun
22 mm
Rain / yr
1161 mm
128 wet days
Daylight
11.5–12.5 h
shortest–longest
Elevation
8 m
9.3°N
Clearest
Mar
41% cloud

Mullaittivu is city.

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

Mullaittivu weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around late December to late March.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Mullaittivu, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Mullaittivu stay fairly even through the year, without a distinct hot or cool season. The warmest month is May, with an average high of 33°C and low of 27°C; the coolest is January, with an average low of 24°C and high of 27°C.

Days typically run about 4°C warmer than nights year-round.

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2724
Feb2825
Mar2925
Apr3126
May3327
Jun3227
Jul3227
Aug3227
Sep3226
Oct3026
Nov2825
Dec2725

How hot and cold Mullaittivu really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the hottest afternoons, once humidity is folded in, Mullaittivu feels like about 41°C (around May 8). About 249 days a year carry some heat stress, and 49 of them tip into dangerous heat (feels-like above 39°C), peaking in May.

20°25°30°35°40°45°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan28272424
Feb30282525
Mar34292525
Apr39312626
May40332727
Jun38322727
Jul37322727
Aug36322727
Sep36322626
Oct35302526
Nov32282525
Dec29272525

Average hourly temperature in Mullaittivu

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on May afternoons, near 33°C, and coldest before dawn in January, near 24°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Mullaittivu weather by month

Every month at a glance. Click a month for its detailed page.

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

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Mullaittivu gets about 1161 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 3.8 months, from around Sep 23 to Jan 16, peaking in November at about 78% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 18.

November is the wettest month by volume, with 304 mm over about 23 wet days; June is the driest, with 22 mm.

0%10%20%30%40%50%60%70%80%90%JanFebMarAprMayJunJulAugSepOctNovDecdrierwettermostly drysome rainoften wetvery wetNov 18 · 78%Jun 18 · 10%
Rain on a day (%)Rain days
Jan3711
Feb247
Mar185
Apr288
May207
Jun123
Jul217
Aug289
Sep3210
Oct6019
Nov7623
Dec6219

Monthly rainfall

Over a full year, Mullaittivu collects about 1161 mm of rain across 128 wet days — roughly 97 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 304 mm, while June is the driest at just 22 mm. The three wettest months alone bring about 63% of the year’s total.

050100150200250300350JanFebMarAprMayJunJulAugSepOctNovDec975228484922324758177304249
Rainfall (mm)Rain days
Jan9711
Feb527
Mar285
Apr488
May497
Jun223
Jul327
Aug479
Sep5810
Oct17719
Nov30423
Dec24919

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Mullaittivu, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around December 25 and lasts for 4.7 months, ending around May 17. The clearest month is March, when the sky is clear, mostly clear, or partly cloudy 73% of the time on average.

The cloudier part of the year begins around May 18 and lasts for 7.3 months, ending around December 24. The cloudiest month is July, when it is overcast or mostly cloudy 82% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecMar 24 · 75%Jul 25 · 15%clearmostly clearpartly cloudymostly cloudyovercastclearercloudier
Clearer (%)Cloudier (%)
Jan5149
Feb6337
Mar7327
Apr6337
May4159
Jun2179
Jul1882
Aug2179
Sep3367
Oct3169
Nov2872
Dec3565

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around May 21, brings about 12 h 30 min of light; the shortest, around January 1, only 11 h 30 min — a swing of roughly 1 hour.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.56:316:01
Feb11.76:306:12
Mar11.96:186:14
Apr12.26:016:13
May12.45:506:16
Jun12.55:516:23
Jul12.55:586:27
Aug12.36:026:20
Sep12.16:006:03
Oct11.85:585:46
Nov11.66:055:39
Dec11.56:195:47

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Mullaittivu averages about 7 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 2 and 18 days.

The sunnier stretch runs 4.4 months, from around Jan 8 to May 21. The sunniest month is March, with roughly 17 sunny days (bright).

The greyest month is July, down near 2 sunny days — about 87% fewer than the March peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyergloomymixedbrightMar 2418 daysJul 252 days
Sunny daysSky
Jan8Gloomy
Feb12Mixed
Mar17Bright
Apr13Mixed
May8Gloomy
Jun3Gloomy
Jul2Gloomy
Aug3Gloomy
Sep5Gloomy
Oct5Gloomy
Nov4Gloomy
Dec5Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

Mullaittivu is humid all year round — on a typical day the air feels at least humid, and there is no real dry season to wait for.

The stickiest month is January, when it feels muggy, oppressive or miserable about 96% of the time. Even in January, the mildest month, the air is dry or comfortable only 0% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmiserableoppressivemuggy
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan438562
Feb329644
Mar186527
Apr001981
May002278
Jun006535
Jul008317
Aug008515
Sep008713
Oct007129
Nov046431
Dec2206711

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Mullaittivu is typically light breeze, near 16 km/h, and varies a lot with the seasons.

The windier part of the year lasts 4.6 months, from around May 10 to Sep 26. The windiest month is June, averaging about 22 km/h (breezy).

The calmer part of the year runs from around Jan 20 to May 9, with April the calmest month at about 12 km/h.

051015202530JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezebreezywindyJun 13 · 22 km/hApr 11 · 11 km/h
Wind speed (km/h)Feels
Jan16light breeze
Feb14light breeze
Mar12light breeze
Apr12calm
May18light breeze
Jun22breezy
Jul20light breeze
Aug19light breeze
Sep17light breeze
Oct13light breeze
Nov13light breeze
Dec16light breeze

Hazard calendar for Mullaittivu

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

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

Best time to visit Mullaittivu

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Mullaittivu throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around mid January, Mullaittivu is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Mullaittivu for general outdoor tourist activities is from late December to late March, with a peak score in the third week of February.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationFeb 16 · 6.9

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan6.2good
Feb6.7good
Mar6.1good
Apr4.6fair
May4.0fair
Jun4.1fair
Jul4.0fair
Aug4.0fair
Sep4.0fair
Oct3.9fair
Nov4.1fair
Dec5.0fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Mullaittivu for hot-weather activities is from mid January to mid July, with a peak score in the third week of March.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationMar 19 · 8.0

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Mullaittivu, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

Mullaittivu packs about the same all year — highs hold near 33°C. Across the year the things worth having are light clothes, sun protection and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In May, Mullaittivu sees daytime highs around 33°C and nights near 27°C. Pack light clothes and sun protection. About 7 days see rain.

Sea temperature near Mullaittivu

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

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 (midday) in Mullaittivu by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

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

Average hourly UV index in Mullaittivu

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in May the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 6.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan74.5
Feb7.55.5
Mar86
Apr86
May8.56.5
Jun85.5
Jul86
Aug86
Sep86
Oct7.55.5
Nov75
Dec74.5

Air quality in Mullaittivu by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly 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
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Mullaittivu is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Mullaittivu banks about 6,549 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around June.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan485
Feb453
Mar538
Apr564
May615
Jun595
Jul602
Aug593
Sep569
Oct549
Nov494
Dec493

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Mullaittivu receives about 5.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.2 and 6.7 kWh/m².

The brighter stretch of the year lasts 7.8 months, from around Feb 10 to Oct 4. The brightest month is March, averaging about 6.5 kWh/m² (intense).

The dimmest month is November, down near 4.3 kWh/m² — roughly 34% less than the March peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseMar 256.7 kWhNov 284.2 kWh
Solar energy (kWh/m²)Level
Jan4.9Bright
Feb5.8Bright
Mar6.6Intense
Apr6.5Intense
May6.3Intense
Jun6.0Bright
Jul5.8Bright
Aug6.0Bright
Sep6.0Bright
Oct5.2Bright
Nov4.3Bright
Dec4.2Bright

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
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).