Hambantota weather in September

In September, Hambantota sees average daytime highs of 28°C and overnight lows near 26°C, with 87 mm of rain across 16.8 wet days and about 12 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 12% 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 Hambantota's 8th-clearest and 4th-windiest month. For the whole year in context, see Hambantota's year-round climate.

Daytime high
28°
7th warmest
Overnight low
26°
7th coldest
Rainfall
87 mm
16.8 wet days
Daylight
12 hours
5:59 AM – 6:01 PM
Cloud cover
74%
8th clearest
Wind
26 km/h
4th windiest
Solar energy
5.65 kWh/m²
Travel score
5.2
out of 10

Hambantota is main town in Hambantota District, 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 28°C through the month.

A typical September day in Hambantota reaches about 28°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 28°C. Set against its neighbours, September runs on par with August and on par with October.

24°26°28°30°32°151015202530
Avg high (°C)Avg low (°C)
12826
22826
32826
42826
52826
62826
72826
82826
92826
102826
112826
122826
132826
142826
152826
162826
172826
182826
192826
202826
212826
222826
232826
242826
252826
262826
272826
282826
292826
302826

How September really feels in Hambantota

Once humidity and wind are folded in, September 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

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Hambantota weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°568.611.76.6
Feb28° / 25°427.911.86.5
Mar28° / 26°5811.3125.8
Apr29° / 27°11018.812.14.5
May29° / 26°10118.612.34.5
Jun28° / 26°6014.712.35.0
Jul28° / 26°4513.112.35.6
Aug28° / 26°521312.25.7
Sep28° / 26°8716.8125.2
Oct28° / 26°14120.211.94.8
Nov28° / 25°23123.211.74.3
Dec27° / 25°15316.911.75.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 71%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12773
22773
32773
42773
52773
62872
72872
82872
92971
103070
113070
123070
133070
143070
153070
163070
172971
182971
192971
202971
212971
222971
232971
242971
252971
262971
273070
283070
293070
303169

Chance of precipitation in September

Any precipitation

Hambantota gets around 87 mm of rain over 16.8 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 55% and peaks near 60% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
149
249
349
449
550
650
751
852
952
1053
1154
1255
1356
1457
1558
1658
1759
1859
1960
2060
2160
2260
2359
2459
2558
2658
2757
2857
2956
3056

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 73% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
17723
27624
37624
47624
57525
67525
77525
87426
97426
107426
117327
127327
137327
147228
157228
167228
177228
187228
197228
207228
217228
227228
237228
247228
257327
267327
277327
287327
297327
307327

Wind in September

Winds average 26 km/h in September.

Across September, daily wind ranges from about 24 km/h on the calmest days to 27 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202530
Wind speed (km/h)Feels
127breezy
227breezy
327breezy
427breezy
527breezy
627breezy
727breezy
827breezy
927breezy
1027breezy
1127breezy
1227breezy
1327breezy
1427breezy
1527breezy
1627breezy
1727breezy
1826breezy
1926breezy
2026breezy
2126breezy
2226breezy
2326breezy
2425breezy
2525breezy
2625breezy
2725breezy
2825breezy
2924breezy
3024breezy

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 6:02 AM to 5:56 AM, and sunset from 6:09 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:026:09
212.16:026:08
312.16:016:08
412.16:016:07
512.16:016:07
612.16:016:06
712.16:016:06
812.16:006:05
912.16:006:05
1012.16:006:04
1112.16:006:04
1212.16:006:03
1312.15:596:02
1412.05:596:02
1512.05:596:01
1612.05:596:01
1712.05:596:00
1812.05:586:00
1912.05:585:59
2012.05:585:59
2112.05:585:58
2212.05:585:58
2312.05:575:57
2412.05:575:57
2512.05:575:56
2612.05:575:55
2712.05:575:55
2812.05:575:54
2912.05:565:54
3012.05:565:53

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.65 kWh/m².

For context, solar energy here swings from a low near 4.79 kWh/m² to a high of 6.46 kWh/m² in March across the year — September's 5.65 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.5Bright
Planning a trip in September

Hazard calendar for Hambantota

In seasonPeak

In September, Hambantota sits inside its cyclone season. The full year is below, with each hazard's peak months called out.

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

Hambantota'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 September a good time to visit Hambantota?

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

5.2
Sightseeing
7th-best month of the year
5.5
Beach & pool
9th-best month of the year

September is a reasonable time to visit Hambantota for sightseeing.

What to pack for Hambantota in September

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

In September, Hambantota sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection and a windbreaker. About 17 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Hambantota 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 offshore is warmest in April at about 29°C and coldest in August near 27°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
Jan27Warm
Feb28Warm
Mar29Tropical
Apr29Tropical
May29Tropical
Jun28Warm
Jul28Warm
Aug27Warm
Sep28Warm
Oct28Tropical
Nov29Tropical
Dec28Warm

UV index in Hambantota 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 Hambantota peaks around April 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeApr 16UV 14Dec 19UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar13Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec10Extreme

Air quality in Hambantota 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 Hambantota 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 Hambantota?

Hambantota sits at 6.1°N, 81.1°E, 10 m above sea level, in Sri Lanka. The nearest listed city is Ambalantota, 11 km away.

KataragamaBeliattaDevinuwaraMataraMirissaWeligamaElla

Topography around Hambantota

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

Within 3 km, the terrain around Hambantota has only modest variations in elevation — a maximum elevation change of 35 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 96 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,105 m.

The land around Hambantota is covered by water (62%) within 3 km, water (54%) and trees (22%) within 16 km, and trees (56%) and water (34%) within 80 km.

3 km
35 m
16 km
96 m
80 km
2,105 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Ambalantota 11 km · Kataragama 40 km · Beliatta 43 km · Devinuwara 62 km · Matara 67 km · Mirissa 76 km · Weligama 78 km · Ella 84 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 Hambantota (6.1241°, 81.1185°, elevation 10 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).