Badulla weather in September

In September, Badulla sees average daytime highs of 30°C and overnight lows near 21°C, with 127 mm of rain across 13.4 wet days and about 12 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 8% of the time in September, and the air most often feels humid.

Daylight stretches from about 12 h 06 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Badulla's 6th-clearest and 4th-windiest month. For the whole year in context, see Badulla's year-round climate.

Daytime high
30°
4th warmest
Overnight low
21°
8th coldest
Rainfall
127 mm
13.4 wet days
Daylight
12 hours
5:59 AM – 6:01 PM
Cloud cover
76%
6th clearest
Wind
6 km/h
4th windiest
Solar energy
5.72 kWh/m²
Travel score
4.5
out of 10

Badulla is city in Sri Lanka.

Density
4,759/km²
people per km²

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 30°C through the month.

A typical September day in Badulla reaches about 30°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 32°C. Set against its neighbours, September runs on par with August and about 2°C warmer than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13021
23021
33021
43021
53021
63021
73021
83021
93021
103021
113021
123021
133021
143021
153021
163021
173021
183021
193021
203021
213021
223021
232921
242921
252921
262921
272921
282920
292920
302920

Badulla weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 18°12715.711.65.9
Feb25° / 18°8712.711.86.2
Mar27° / 18°8012.2126.0
Apr28° / 20°16719.712.14.4
May29° / 21°1401712.34.3
Jun30° / 22°529.612.44.7
Jul30° / 22°527.712.44.8
Aug30° / 21°699.512.24.7
Sep30° / 21°12713.4124.5
Oct28° / 20°26821.611.84.4
Nov25° / 19°27224.511.74.2
Dec24° / 19°22221.411.65.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11981
21981
31981
42080
52080
62179
72278
82377
92377
102476
112476
122476
132476
142575
152575
162575
172575
182476
192476
202476
212476
222377
232278
242278
252278
262278
272278
282377
292377
302377

Chance of precipitation in September

Any precipitation

Badulla gets around 127 mm of rain over 13.4 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 44% and peaks near 54% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
138
239
339
440
540
641
741
841
941
1041
1141
1241
1341
1441
1541
1642
1743
1843
1944
2045
2146
2247
2348
2450
2551
2652
2753
2853
2954
3054

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 46% of days. Sticky, muggy-or-worse air turns up on roughly 46% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1195436
2195337
3195337
41105138
51105039
61104940
71104841
81104842
91104742
10194743
11194644
12194645
13184645
14084646
15074647
16074647
17064648
18064648
19064549
20064549
21054549
22064550
23064450
24064450
25064351
26064252
27064252
28064153
29064054
30063955

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 06 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over September. Sunrise moves from 6:01 AM to 5:57 AM, and sunset from 6:10 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:016:10
212.16:016:09
312.16:016:08
412.16:016:08
512.16:016:07
612.16:016:07
712.16:016:06
812.16:006:06
912.16:006:05
1012.16:006:05
1112.16:006:04
1212.16:006:04
1312.15:596:03
1412.15:596:02
1512.05:596:02
1612.05:596:01
1712.05:596:01
1812.05:596:00
1912.05:586:00
2012.05:585:59
2112.05:585:58
2212.05:585:58
2312.05:585:57
2412.05:585:57
2512.05:575:56
2612.05:575:56
2712.05:575:55
2812.05:575:55
2912.05:575:54
3011.95:575:53

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.72 kWh/m².

For context, solar energy here swings from a low near 3.94 kWh/m² to a high of 6.21 kWh/m² in March across the year — September's 5.72 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in September

Hazard calendar for Badulla

In seasonPeak

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

Badulla's rainy season runs April–May, when most of the year's rain falls.

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

Is September a good time to visit Badulla?

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

4.5
Sightseeing
8th-best month of the year
6.0
Beach & pool
5th-best month of the year

September is a reasonable time to visit Badulla for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Badulla in September

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

In September, Badulla sees daytime highs around 30°C and nights near 21°C. Pack light clothes. Worth having: rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

UV index in Badulla 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 Badulla peaks around April 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeApr 13UV 14Dec 17UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar14Extreme
Apr14Extreme
May14Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov11Extreme
Dec10Extreme

Air quality in Badulla 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 Badulla 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 Badulla?

Badulla sits at 7.0°N, 81.1°E, 683 m above sea level, in Sri Lanka. The nearest listed city is Ella, 12 km away.

Nuwara EliyaHattonGampolaKandyKataragamaMataleAmpara

Topography around Badulla

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

Within 3 km, the terrain around Badulla has significant variations in elevation — a maximum elevation change of 489 m around an average of 789 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,860 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,497 m.

The land around Badulla is covered by trees (77%) within 3 km, trees (83%) within 16 km, and trees (84%) within 80 km.

3 km
489 m
16 km
1,860 m
80 km
2,497 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Ella 12 km · Nuwara Eliya 30 km · Hatton 52 km · Gampola 58 km · Kandy 58 km · Kataragama 70 km · Matale 73 km · Ampara 77 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 Badulla (6.9802°, 81.0577°, elevation 683 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. 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).