Vavuniya weather in August

In August, Vavuniya sees average daytime highs of 34°C and overnight lows near 26°C, with 58 mm of rain across 10.3 wet days and about 12.3 hours of daylight. It is the 2nd-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 8% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 h 24 min at the start of August to 12 h 12 min by month's end. Set against the rest of the year, August is Vavuniya's 9th-clearest and 3rd-windiest month. For the whole year in context, see Vavuniya's year-round climate.

Daytime high
34°
2nd warmest
Overnight low
26°
9th coldest
Rainfall
58 mm
10.3 wet days
Daylight
12 h 18 min
6:03 AM – 6:21 PM
Cloud cover
78%
9th clearest
Wind
18 km/h
3rd windiest
Solar energy
5.77 kWh/m²
Travel score
2.9
out of 10

Vavuniya is human settlement.

Density
2,674/km²
people per km²

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°C through the month.

A typical August day in Vavuniya reaches about 34°C in the afternoon and slips back to 26°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 32°C and 36°C. Set against its neighbours, August runs on par with July and on par with September.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13426
23426
33426
43426
53426
63426
73426
83426
93426
103426
113426
123426
133426
143426
153426
163426
173426
183426
193426
203426
213426
223426
233426
243426
253426
263426
273426
283426
293426
303426
313426

How August really feels in Vavuniya

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

Vavuniya weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 22°6910.211.55.4
Feb31° / 22°457.511.75.0
Mar33° / 23°447.311.93.6
Apr34° / 25°10215.212.22.6
May34° / 26°7512.412.42.8
Jun34° / 26°297.212.53.0
Jul34° / 26°458.612.52.9
Aug34° / 26°5810.312.32.9
Sep34° / 25°7211.612.12.9
Oct32° / 24°18920.211.83.0
Nov30° / 23°23422.911.63.5
Dec29° / 23°16318.311.54.5

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 79%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11783
21783
31882
41882
51882
61981
71981
82080
92080
102179
112179
122179
132179
142179
152179
162179
172179
182179
192278
202278
212377
222278
232278
242377
252377
262476
272476
282476
292476
302476
312476

Chance of precipitation in August

Any precipitation

Vavuniya gets around 58 mm of rain over 10.3 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 33% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
128
228
328
429
529
630
730
831
932
1033
1134
1235
1335
1436
1536
1637
1737
1837
1936
2036
2136
2235
2335
2434
2534
2634
2733
2833
2933
3032
3132

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 93% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
11954
21954
31954
41954
51954
61945
72935
82935
92935
102926
112926
122926
132926
142926
152926
162926
172926
182926
192935
202935
212935
222944
232944
242944
252944
262944
272944
282944
292944
303934
313934

Wind in August

Winds average 18 km/h in August.

Across August, daily wind ranges from about 17 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light 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 August

DaylightNight

Daylight runs from about 12 h 24 min at the start of August to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over August. Sunrise moves from 6:02 AM to 6:03 AM, and sunset from 6:26 PM to 6:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:026:26
212.46:036:25
312.46:036:25
412.46:036:25
512.46:036:25
612.46:036:24
712.46:036:24
812.36:036:24
912.36:036:23
1012.36:036:23
1112.36:036:23
1212.36:036:22
1312.36:036:22
1412.36:036:22
1512.36:036:21
1612.36:036:21
1712.36:036:20
1812.36:036:20
1912.36:036:20
2012.36:036:19
2112.36:036:19
2212.26:036:18
2312.26:036:18
2412.26:036:17
2512.26:036:17
2612.26:036:16
2712.26:036:16
2812.26:036:15
2912.26:036:14
3012.26:036:14
3112.26:036:13

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.77 kWh/m².

For context, solar energy here swings from a low near 3.84 kWh/m² to a high of 6.24 kWh/m² in March across the year — August's 5.77 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in August

Hazard calendar for Vavuniya

In seasonPeak

None of Vavuniya's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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

Vavuniya's rainy season runs October–December, when most of the year's rain falls.

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

Is August a good time to visit Vavuniya?

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

2.9
Sightseeing
8th-best month of the year
5.7
Beach & pool
6th-best month of the year

August is a weaker month for outdoor sightseeing in Vavuniya.

What to pack for Vavuniya in August

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

In August, Vavuniya sees daytime highs around 34°C and nights near 26°C. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Vavuniya in August

The nearest coast averages about 28°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 58 km away) is warmest in April at about 31°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
Apr31Tropical
May30Tropical
Jun29Tropical
Jul29Tropical
Aug28Tropical
Sep28Tropical
Oct29Tropical
Nov29Tropical
Dec27Warm

UV index in Vavuniya in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Vavuniya peaks around May 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMay 10UV 13Dec 22UV 9
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar12Extreme
Apr13Extreme
May14Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec9Very high

Air quality in Vavuniya in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Vavuniya 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 Vavuniya?

Vavuniya sits at 8.8°N, 80.5°E, 104 m above sea level, in Sri Lanka. The nearest listed city is Anuradhapura, 50 km away.

AnuradhapuraMullaittivuMannarTrincomaleeSigiriyaDambullaPolonnaruwaPuttalam

Topography around Vavuniya

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

Within 3 km, the terrain around Vavuniya has only modest variations in elevation — a maximum elevation change of 29 m around an average of 96 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 169 m; within 80 km, large variations in elevation — a maximum elevation change of 732 m.

The land around Vavuniya is covered by trees (58%) within 3 km, trees (64%) within 16 km, and trees (61%) within 80 km.

3 km
29 m
16 km
169 m
80 km
732 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Anuradhapura 50 km · Mullaittivu 67 km · Mannar 73 km · Trincomalee 83 km · Sigiriya 93 km · Dambulla 101 km · Polonnaruwa 106 km · Puttalam 108 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 Vavuniya (8.7514°, 80.4971°, elevation 104 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).