Beliatta weather in September

In September, Beliatta sees average daytime highs of 29°C and overnight lows near 25°C, with 144 mm of rain across 22.4 wet days and about 12 hours of daylight. It is the 10th-warmest and 6th-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 6% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Beliatta's 8th-clearest and 4th-windiest month. For the whole year in context, see Beliatta's year-round climate.

Daytime high
29°
10th warmest
Overnight low
25°
7th coldest
Rainfall
144 mm
22.4 wet days
Daylight
12 hours
6:00 AM – 6:02 PM
Cloud cover
78%
8th clearest
Wind
19 km/h
4th windiest
Solar energy
5.59 kWh/m²
Travel score
3.9
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 September

Average highAverage lowShaded bands: 10–90% of days

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

A typical September day in Beliatta reaches about 29°C in the afternoon and slips back to 25°C overnight — a 4°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, September runs on par with August and on par with October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12825
22825
32825
42925
52925
62925
72925
82925
92925
102925
112925
122925
132925
142925
152925
162925
172925
182925
192925
202925
212925
222925
232925
242925
252925
262925
272925
282925
292925
302925

How September really feels in Beliatta

Once humidity and wind are folded in, September averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Beliatta weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 6th-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 September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 79%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12080
22080
32080
42080
52179
62179
72179
82179
92179
102179
112278
122278
132278
142278
152278
162278
172278
182179
192179
202179
212179
222179
232179
242080
252080
262080
272179
282179
292278
302278

Chance of precipitation in September

Any precipitation

Beliatta gets around 144 mm of rain over 22.4 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 75% and peaks near 77% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
172
272
372
472
572
672
773
873
973
1074
1174
1274
1375
1475
1576
1676
1777
1877
1977
2077
2177
2277
2377
2476
2576
2676
2776
2876
2976
3076

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 67% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
17129
27129
37030
47030
56931
66931
76832
86832
96733
106733
116634
126634
136535
146535
156535
166535
176535
186535
196535
206535
216535
226634
236634
246634
256634
266733
276733
286733
296733
306634

Wind in September

Winds average 19 km/h in September.

Across September, daily wind ranges from about 17 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
120light breeze
220light breeze
320light breeze
420light breeze
520light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2019light breeze
2119light breeze
2219light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3017light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 06 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over September. Sunrise moves from 6:03 AM to 5:58 AM, and sunset from 6:10 PM to 5:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:036:10
212.16:036:10
312.16:036:09
412.16:036:09
512.16:036:08
612.16:026:08
712.16:026:07
812.16:026:07
912.16:026:06
1012.16:026:06
1112.16:016:05
1212.16:016:05
1312.06:016:04
1412.06:016:03
1512.06:016:03
1612.06:006:02
1712.06:006:02
1812.06:006:01
1912.06:006:01
2012.06:006:00
2112.05:596:00
2212.05:595:59
2312.05:595:59
2412.05:595:58
2512.05:595:58
2612.05:585:57
2712.05:585:56
2812.05:585:56
2912.05:585:55
3012.05:585:55

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.59 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 — September's 5.59 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in September

Hazard calendar for Beliatta

In seasonPeak

In September, 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 September a good time to visit Beliatta?

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

3.9
Sightseeing
7th-best month of the year
4.7
Beach & pool
7th-best month of the year

September is a weaker month for outdoor sightseeing in Beliatta.

What to pack for Beliatta in September

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

In September, Beliatta sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

Sea temperature near Beliatta in September

The nearest coast averages about 28°C in September — 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 September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 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 September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September 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
September 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).