Kataragama weather in September

In September, Kataragama sees average daytime highs of 34°C and overnight lows near 25°C, with 52 mm of rain across 10.2 wet days and about 12 hours of daylight. It is the 3rd-warmest and 9th-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 11% 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 Kataragama's 7th-clearest and 4th-windiest month. For the whole year in context, see Kataragama's year-round climate.

Daytime high
34°
3rd warmest
Overnight low
25°
8th coldest
Rainfall
52 mm
10.2 wet days
Daylight
12 hours
5:58 AM – 6:00 PM
Cloud cover
73%
7th clearest
Wind
16 km/h
4th windiest
Solar energy
5.8 kWh/m²
Travel score
2.8
out of 10

Kataragama is city of Kataragama in Uva 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 34°C through the month.

A typical September day in Kataragama reaches about 34°C in the afternoon and slips back to 25°C overnight — a 10°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, September runs on par with August and about 2°C warmer than October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13425
23425
33425
43425
53425
63425
73425
83425
93425
103425
113425
123425
133425
143425
153425
163425
173425
183425
193425
203425
213425
223425
233424
243424
253424
263424
273424
283424
293424
303424

How September really feels in Kataragama

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.

Kataragama weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°9610.711.75.0
Feb31° / 22°629.811.84.4
Mar33° / 22°7611.8123.4
Apr33° / 24°14820.512.12.7
May33° / 25°7813.412.33.0
Jun34° / 25°245.812.43.0
Jul35° / 25°204.412.32.9
Aug35° / 25°245.812.22.8
Sep34° / 25°5210.2122.8
Oct32° / 24°19318.811.92.9
Nov30° / 23°28323.811.73.2
Dec29° / 22°19218.111.64.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 71%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12674
22773
32872
42872
52971
63070
73070
83070
93070
103169
113268
123268
133268
143268
153268
163169
173169
183169
192971
202971
212872
222872
232773
242773
252674
262773
272773
282773
292773
302872

Chance of precipitation in September

Any precipitation

Kataragama gets around 52 mm of rain over 10.2 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 34% and peaks near 47% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
125
225
326
426
526
627
727
827
927
1027
1127
1228
1329
1429
1530
1632
1733
1834
1935
2037
2138
2239
2341
2442
2543
2645
2746
2846
2947
3047

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
Muggy (%)Oppressive (%)Miserable (%)
142580
242580
341590
441590
540600
640600
739610
838620
937630
1036640
1135650
1234660
1333670
1432680
1531690
1631690
1730700
1829710
1928720
2028720
2127730
2227730
2326740
2426740
2526740
2625750
2725750
2825741
2925741
3024751

Wind in September

Winds average 16 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light 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 6:01 AM to 5:55 AM, and sunset from 6:08 PM to 5:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:016:08
212.16:006:08
312.16:006:07
412.16:006:07
512.16:006:06
612.16:006:05
712.16:006:05
812.15:596:04
912.15:596:04
1012.15:596:03
1112.15:596:03
1212.15:596:02
1312.15:596:02
1412.05:586:01
1512.05:586:01
1612.05:586:00
1712.05:585:59
1812.05:585:59
1912.05:575:58
2012.05:575:58
2112.05:575:57
2212.05:575:57
2312.05:575:56
2412.05:565:56
2512.05:565:55
2612.05:565:55
2712.05:565:54
2812.05:565:54
2912.05:565:53
3012.05:555:52

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.8 kWh/m².

For context, solar energy here swings from a low near 4.42 kWh/m² to a high of 6.27 kWh/m² in March across the year — September's 5.8 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
155.9Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.6Bright
295.6Bright
305.6Bright
Planning a trip in September

Hazard calendar for Kataragama

In seasonPeak

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

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

Kataragama'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 September a good time to visit Kataragama?

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

2.8
Sightseeing
10th-best month of the year
5.6
Beach & pool
7th-best month of the year

September is a weaker month for outdoor sightseeing in Kataragama.

What to pack for Kataragama in September

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

In September, Kataragama sees daytime highs around 34°C and nights near 25°C. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Kataragama 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 32 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
May29Tropical
Jun28Tropical
Jul28Tropical
Aug28Warm
Sep28Warm
Oct28Tropical
Nov29Tropical
Dec28Warm

UV index in Kataragama 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 Kataragama peaks around April 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 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 18UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar13Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov11Extreme
Dec10Extreme

Air quality in Kataragama 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 Kataragama is worst in November — around 48 µg/m³ PM2.5 (poor), about 1.8× the cleanest month (July, 27 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorNov 1847 µg/m³Jul 1327 µg/m³
PM2.5 (µg/m³)Level
Jan42Poor
Feb36Poor
Mar41Poor
Apr44Poor
May36Poor
Jun27Moderate
Jul27Moderate
Aug28Moderate
Sep29Moderate
Oct41Poor
Nov48Poor
Dec44Poor
Location & terrain

Where is Kataragama?

Kataragama sits at 6.4°N, 81.3°E, 48 m above sea level, in Sri Lanka. The nearest listed city is Hambantota, 40 km away.

HambantotaAmbalantotaEllaBadullaPottuvilBeliattaNuwara EliyaHatton

Topography around Kataragama

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

Within 3 km, the terrain around Kataragama has significant variations in elevation — a maximum elevation change of 371 m around an average of 70 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 401 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,334 m.

The land around Kataragama is covered by trees (80%) within 3 km, trees (83%) within 16 km, and trees (58%) and water (30%) within 80 km.

3 km
371 m
16 km
401 m
80 km
2,334 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Hambantota 40 km · Ambalantota 48 km · Ella 60 km · Badulla 70 km · Pottuvil 75 km · Beliatta 78 km · Nuwara Eliya 87 km · Hatton 97 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 Kataragama (6.4134°, 81.3346°, elevation 48 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).