Kegalle weather in September

In September, Kegalle sees average daytime highs of 29°C and overnight lows near 24°C, with 196 mm of rain across 26.2 wet days and about 12 hours of daylight. It is the 10th-warmest and 5th-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 2% 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 11 h 54 min by month's end. Set against the rest of the year, September is Kegalle's 8th-clearest and 4th-windiest month. For the whole year in context, see Kegalle's year-round climate.

Daytime high
29°
10th warmest
Overnight low
24°
7th coldest
Rainfall
196 mm
26.2 wet days
Daylight
12 hours
6:02 AM – 6:04 PM
Cloud cover
81%
8th clearest
Wind
11 km/h
4th windiest
Solar energy
4.83 kWh/m²
Travel score
3.2
out of 10

Kegalle is town in Sabaragamuwa 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 Kegalle reaches about 29°C in the afternoon and slips back to 24°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12924
22924
32924
42924
52924
62924
72924
82924
92924
102924
112924
122924
132924
142924
152924
162924
172924
182924
192924
202924
212924
222924
232924
242924
252923
262923
272923
282923
292923
302923

How September really feels in Kegalle

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.

Kegalle weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 22°556.311.65.1
Feb32° / 22°51611.84.2
Mar34° / 23°8310.5123.2
Apr32° / 24°18822.112.22.7
May30° / 25°19527.912.32.7
Jun29° / 24°21928.212.42.9
Jul29° / 24°20728.312.43.1
Aug29° / 24°18628.512.23.1
Sep29° / 24°19626.2123.2
Oct29° / 23°34827.911.83.0
Nov30° / 23°31522.111.73.5
Dec29° / 22°15514.411.64.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 85%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11288
21288
31288
41387
51387
61387
71486
81486
91486
101585
111585
121585
131684
141684
151684
161684
171684
181684
191684
201684
211684
221585
231585
241585
251585
261585
271585
281585
291684
301684

Chance of precipitation in September

Any precipitation

Kegalle gets around 196 mm of rain over 26.2 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 88% and peaks near 90% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
188
287
387
487
587
686
786
886
986
1086
1186
1286
1387
1487
1587
1688
1788
1888
1989
2089
2189
2289
2389
2490
2590
2690
2790
2890
2990
3090

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 94% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
1955
2955
3955
4955
5955
6946
7946
8946
9946
10946
11946
12946
13946
14946
15946
16946
17946
18946
19946
20946
21955
22955
23955
24955
25955
26955
27955
28955
29955
30955

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
299calm
309calm

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 6:04 AM to 6:00 AM, and sunset from 6:13 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:046:13
212.16:046:12
312.16:046:11
412.16:046:11
512.16:046:10
612.16:036:10
712.16:036:09
812.16:036:09
912.16:036:08
1012.16:036:08
1112.16:036:07
1212.16:026:06
1312.16:026:06
1412.16:026:05
1512.06:026:05
1612.06:026:04
1712.06:026:04
1812.06:016:03
1912.06:016:02
2012.06:016:02
2112.06:016:01
2212.06:016:01
2312.06:016:00
2412.06:006:00
2512.06:005:59
2612.06:005:58
2712.06:005:58
2812.06:005:57
2912.06:005:57
3011.96:005:56

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.83 kWh/m².

For context, solar energy here swings from a low near 4.33 kWh/m² to a high of 6.19 kWh/m² in March across the year — September's 4.83 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
Planning a trip in September

Hazard calendar for Kegalle

In seasonPeak

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

Kegalle 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 Kegalle?

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

3.2
Sightseeing
5th-best month of the year
4.1
Beach & pool
7th-best month of the year

September is a weaker month for outdoor sightseeing in Kegalle.

What to pack for Kegalle in September

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

In September, Kegalle sees daytime highs around 29°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

Sea temperature near Kegalle 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 53 km away) is warmest in April at about 30°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°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Tropical
Mar29Tropical
Apr30Tropical
May29Tropical
Jun28Tropical
Jul28Warm
Aug27Warm
Sep28Warm
Oct28Tropical
Nov29Tropical
Dec28Tropical

UV index in Kegalle 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 Kegalle peaks around April 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeApr 18UV 13Dec 15UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar12Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov11Extreme
Dec10Extreme

Air quality in Kegalle 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 Kegalle is worst in November — around 60 µg/m³ PM2.5 (unhealthy), about 2.4× the cleanest month (July, 25 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorUnhealthyPoorNov 1759 µg/m³Jul 2025 µg/m³
PM2.5 (µg/m³)Level
Jan45Poor
Feb41Poor
Mar57Unhealthy
Apr59Unhealthy
May42Poor
Jun27Moderate
Jul25Moderate
Aug26Moderate
Sep30Moderate
Oct49Poor
Nov60Unhealthy
Dec52Poor
Location & terrain

Where is Kegalle?

Kegalle sits at 7.3°N, 80.3°E, 176 m above sea level, in Sri Lanka. The nearest listed city is Kurunegala, 26 km away.

KurunegalaGampolaKandyMataleHanwella IhalaHattonKatunayakaJa Ela

Topography around Kegalle

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

Within 3 km, the terrain around Kegalle has significant variations in elevation — a maximum elevation change of 307 m around an average of 223 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,079 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,506 m.

The land around Kegalle is covered by trees (96%) within 3 km, trees (95%) within 16 km, and trees (81%) within 80 km.

3 km
307 m
16 km
1,079 m
80 km
2,506 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Kurunegala 26 km · Gampola 27 km · Kandy 32 km · Matale 39 km · Hanwella Ihala 48 km · Hatton 49 km · Katunayaka 51 km · Ja Ela 54 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 Kegalle (7.2523°, 80.3436°, elevation 176 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).