Mannar weather in October

In October, Mannar sees average daytime highs of 29°C and overnight lows near 26°C, with 186 mm of rain across 20.5 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 2nd-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 13% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of October to 11 h 42 min by month's end. Set against the rest of the year, October is Mannar's 8th-clearest and 8th-windiest month. For the whole year in context, see Mannar's year-round climate.

Daytime high
29°
8th warmest
Overnight low
26°
6th coldest
Rainfall
186 mm
20.5 wet days
Daylight
11 h 48 min
6:02 AM – 5:49 PM
Cloud cover
74%
8th clearest
Wind
17 km/h
8th windiest
Solar energy
5.01 kWh/m²
Travel score
3.9
out of 10

Mannar is town in Sri Lanka.

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical October day in Mannar reaches about 29°C in the afternoon and slips back to 26°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°C. Set against its neighbours, October runs on par with September and about 1°C warmer than November.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13026
23026
33026
43026
53026
63026
73026
83026
93026
103026
112926
122926
132926
142926
152926
162926
172926
182926
192926
202926
212926
222926
232926
242926
252926
262926
272926
282925
292925
302925
312925

How October really feels in Mannar

Once humidity and wind are folded in, October 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 October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Mannar weather by month

How October compares with the rest of the year at a glance. October is the 8th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 24°586.711.56.6
Feb29° / 24°274.611.76.2
Mar31° / 25°295.511.95.2
Apr31° / 27°7813.412.24.1
May31° / 28°699.812.44.4
Jun31° / 28°245.612.54.9
Jul30° / 27°235.812.55.0
Aug30° / 27°336.812.35.0
Sep30° / 27°569.812.14.8
Oct29° / 26°18620.511.83.9
Nov28° / 25°24722.211.64.1
Dec28° / 24°15115.311.55.5

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 72%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23466
33466
43466
53367
63367
73367
83268
93268
103169
113070
122971
132872
142773
152674
162575
172476
182476
192377
202377
212377
222476
232476
242476
252476
262476
272575
282575
292575
302575
312674

Chance of precipitation in October

Any precipitation

Mannar gets around 186 mm of rain over 20.5 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 66% and peaks near 78% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
148
249
350
452
553
655
756
857
959
1061
1162
1264
1366
1467
1569
1670
1771
1872
1972
2073
2173
2274
2374
2475
2575
2676
2776
2877
2977
3077
3178

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the oppressive band about 51% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
104654
204654
304654
404654
504654
604654
704654
804555
904555
1004555
1104555
1204555
1304555
1404654
1504654
1604753
1704852
1814950
1915049
2015148
2115346
2215445
2315544
2415742
2515841
2615940
2716039
2816138
2916237
3016336
3116435

Wind in October

Winds average 17 km/h in October.

Across October, daily wind ranges from about 14 km/h on the calmest days to 22 km/h at its breeziest. Calmer and breezier days trade off through the month.

0510152025151015202531
Wind speed (km/h)Feels
122breezy
222breezy
321breezy
421breezy
521breezy
621breezy
720breezy
820breezy
920light breeze
1019light breeze
1119light breeze
1219light breeze
1318light breeze
1418light breeze
1517light breeze
1617light breeze
1717light breeze
1816light breeze
1916light breeze
2016light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 54 min at the start of October to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over October. Sunrise moves from 6:02 AM to 6:04 AM, and sunset from 5:57 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:025:57
211.96:025:57
311.96:025:56
411.96:025:55
511.96:025:55
611.96:025:54
711.96:025:54
811.96:015:53
911.96:015:53
1011.86:015:52
1111.86:015:52
1211.86:015:51
1311.86:015:51
1411.86:025:50
1511.86:025:50
1611.86:025:49
1711.86:025:49
1811.86:025:49
1911.86:025:48
2011.86:025:48
2111.86:025:47
2211.86:025:47
2311.76:025:47
2411.76:025:46
2511.76:025:46
2611.76:035:46
2711.76:035:46
2811.76:035:45
2911.76:035:45
3011.76:035:45
3111.76:045:45

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.01 kWh/m².

For context, solar energy here swings from a low near 4.06 kWh/m² to a high of 6.38 kWh/m² in March across the year — October's 5.01 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.5Bright
45.5Bright
55.5Bright
65.4Bright
75.4Bright
85.4Bright
95.3Bright
105.3Bright
115.2Bright
125.2Bright
135.2Bright
145.1Bright
155.0Bright
165.0Bright
175.0Bright
184.9Bright
194.9Bright
204.8Bright
214.8Bright
224.7Bright
234.7Bright
244.6Bright
254.6Bright
264.5Bright
274.5Bright
284.5Bright
294.4Bright
304.4Bright
314.4Bright
Planning a trip in October

Hazard calendar for Mannar

In seasonPeak

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

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

Mannar'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 October a good time to visit Mannar?

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

3.9
Sightseeing
12th-best month of the year
5.2
Beach & pool
11th-best month of the year

October is a weaker month for outdoor sightseeing in Mannar.

What to pack for Mannar in October

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

In October, Mannar sees daytime highs around 29°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

Sea temperature near Mannar in October

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

The sea at the nearest coast (about 13 km away) is warmest in April 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
Jul28Tropical
Aug28Tropical
Sep28Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Mannar in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October 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 Mannar peaks around April 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 9 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 highApr 17UV 13Jan 9UV 9
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec9Very high

Air quality in Mannar in October

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Mannar is worst in May — around 24 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMay 1323 µg/m³Sep 1516 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb19Moderate
Mar21Moderate
Apr22Moderate
May24Moderate
Jun18Moderate
Jul17Moderate
Aug18Moderate
Sep16Moderate
Oct18Moderate
Nov18Moderate
Dec19Moderate
Location & terrain

Where is Mannar?

Mannar sits at 9.0°N, 79.9°E, 9 m above sea level, in Sri Lanka. The nearest listed city is Vavuniya, 73 km away.

VavuniyaJaffnaAnuradhapuraValvedditturaiPoint PedroPuttalamMullaittivuSigiriya

Topography around Mannar

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

Within 3 km, the terrain around Mannar 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 13 m; within 80 km, only modest variations in elevation — a maximum elevation change of 174 m.

The land around Mannar is covered by water (39%) and trees (24%) within 3 km, water (73%) within 16 km, and water (56%) and trees (33%) within 80 km.

3 km
11 m
16 km
13 m
80 km
174 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
October weather nearby: Vavuniya 73 km · Jaffna 77 km · Anuradhapura 96 km · Valvedditturai 97 km · Point Pedro 100 km · Puttalam 106 km · Mullaittivu 107 km · Sigiriya 150 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 Mannar (8.9894°, 79.8784°, elevation 9 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).