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Galle in September 2026: weather, temperatures and activities

Do you want to visit Galle in September 2026? Discover the usual weather at this time of year, average temperatures, the risk of rain, possible activities, and our opinion on whether September is a good month to travel to Galle, Sri Lanka.

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Is it worth visiting Galle in September?

Check your ideal travel criteria and see if the month of September suits your plans to go to Galle.
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Galle in September 2026: weather, temperatures and activities

Page summary

Galle in September in summary
Adverse weather
Min 27°C Max 29°C 492 mm 20 day(s) 82% 51% 29°C UV 6 11.0 h/day
Possible activities in September
Beach and swimmingCultural visits and heritageAnimal observationDiving and snorkelingWatersportsNature and landscapesNightlifeGastronomyWell-beingBoat trip and cruise
Practical guidelines
Moderate crowds 06:00 18:09
Hourly weather

Average weather in Galle in September 2026

Adverse weather

The weather in Galle in September 2026 is based on statistical data from previous years in September. This allows you to forecast the weather in September 2026. Check the hourly statistics (6:00, 9:00, 12:00, 15:00, 18:00, 21:00, 0:00 and 3:00), with the associated average temperature, for the whole month, and also, by navigating the tabs, for the beginning, middle and end of the month.

From 1st to 30 September 2026
0h
Dominant weather
Moderate rain at times
14 days out of 30 (46%)
25.8°C
Other common conditions
Heavy rain
7 days out of 30 (23%)
Partly Cloudy
4 days out of 30 (13%)
Cloudy
4 days out of 30 (13%)
3h
Dominant weather
Moderate rain at times
11 days out of 30 (36%)
26.2°C
Other common conditions
Heavy rain
11 days out of 30 (36%)
Partly Cloudy
4 days out of 30 (13%)
Cloudy
4 days out of 30 (13%)
6h
Dominant weather
Moderate rain at times
14 days out of 30 (46%)
27.3°C
Other common conditions
Heavy rain
8 days out of 30 (26%)
Partly Cloudy
4 days out of 30 (13%)
Cloudy
2 days out of 30 (6%)
9h
Dominant weather
Heavy rain
11 days out of 30 (36%)
28.3°C
Other common conditions
Moderate rain at times
10 days out of 30 (33%)
Partly Cloudy
5 days out of 30 (16%)
Clear/Sunny
4 days out of 30 (13%)
12h
Dominant weather
Moderate rain at times
16 days out of 30 (53%)
28.1°C
Other common conditions
Heavy rain
6 days out of 30 (20%)
Clear/Sunny
5 days out of 30 (16%)
Partly Cloudy
3 days out of 30 (10%)
15h
Dominant weather
Moderate rain at times
12 days out of 30 (40%)
26.9°C
Other common conditions
Heavy rain
9 days out of 30 (30%)
Partly Cloudy
6 days out of 30 (20%)
Clear/Sunny
2 days out of 30 (6%)
18h
Dominant weather
Moderate rain at times
14 days out of 30 (46%)
26.2°C
Other common conditions
Heavy rain
7 days out of 30 (23%)
Partly Cloudy
6 days out of 30 (20%)
Cloudy
2 days out of 30 (6%)
21h
Dominant weather
Heavy rain
10 days out of 30 (33%)
26.0°C
Other common conditions
Moderate rain at times
10 days out of 30 (33%)
Partly Cloudy
6 days out of 30 (20%)
Cloudy
3 days out of 30 (10%)
Climate

Climate of Galle in September

Temperatures, precipitation and monthly trends help to better understand the climate in Galle in September.

Temperatures and rain in Galle in September

Average daily weather

Temperatures and rain day by day in September.
Minimal Average Maximums Average rainfall

Monthly temperatures

The month of September is highlighted to compare it quickly with the rest of the year.
Minimal Average Maximums

Monthly precipitation

The bar for the month under study is highlighted.
Average rainfall

About the climate in Galle in September

Seasonal normals

Seasonal normals of Galle in September

Check the seasonal normals in Galle in September and compare the weather with the previous month and the following month (or the months of your choice by selecting months in the form below): temperatures, wind, rain, humidity, climate rating...

Last updated: 12/01/2026
Reference period for normals: January 2009 - December 2025
Month analyzed
September
Weather data August September October
Outside temperature
Average temperature 27.6°C 27.6°C 27.9°C
Maximum temperature 28.4°C 28.5°C 29.0°C
Minimum temperature 26.8°C 26.7°C 26.9°C
Record maximum temperature 30.0°C
(2012)
 30.0°C
(2012)
 32.0°C
(2011)
Record low temperature 23.0°C
(2021)
 24.0°C
(2009)
 25.0°C
(2009)
Number of days at +30° 2 day(s)
(6%)
 2 day(s)
(7%)
 9 day(s)
(29%)
Number of days at +18° 31 day(s)
(100%)
 30 day(s)
(100%)
 31 day(s)
(100%)
Number of days below 0° 0 day(s)
(0%)
 0 day(s)
(0%)
 0 day(s)
(0%)
Sea temperature
Sea temperature (average) 27.4°C 27.9°C 28.7°C
Sea temperature (minimum) 26.2°C 27.2°C 27.3°C
Sea temperature (maximum) 28.6°C 29.1°C 29.7°C
Wind
Wind speed 23 km/h 21 km/h 19 km/h
Wind temperature 26.8°C 26.7°C 26.9°C
Precipitation (rain)
Precipitation 506.4 mm 491.6 mm 394.1 mm
Number of days with precipitation 29 day(s)
(94%)
 27 day(s)
(90%)
 29 day(s)
(94%)
Number of days with significant precipitation (greater than 5 mm) 21 day(s)
(68%)
 20 day(s)
(67%)
 19 day(s)
(63%)
Record precipitation in one day 91.2 mm
(2015)
 111.6 mm
(2011)
 77.9 mm
(2016)
Other weather data
Humidity 82% 82% 81%
Visibility 8.7 km 8.7 km 8.9 km
Cloud cover 49% 51% 45%
UV index 6 6 6
Daily sunshine 10h 11h 11h
Sunrise and sunset
Sunrise time 06h04 06h00 05h55
Sunset time 18h23 18h09 17h55
Day length 12h19 12h09 12h00
Our opinion on the climate in September
The review of Where And When very bad weather adverse weather fair weather
Activities and events

What to do in Galle in September?

Possible activities in September
Beach and swimmingCultural visits and heritageAnimal observationDiving and snorkelingWatersportsNature and landscapesNightlifeGastronomyWell-beingBoat trip and cruise
Observed weather

What was the weather like in Galle in September last?

Find the observed weather calendar in Galle in September 2025, with each day’s weather, temperatures and precipitation.

Mon. Tue. Wed. Thu. Fri. Sat. Sun.
1
Light rain shower
26°C27°C3.8 mm
2
Patchy rain nearby
26°C28°C1.5 mm
3
Patchy rain nearby
26°C28°C1.1 mm
4
Patchy rain nearby
26°C28°C2.7 mm
5
Light rain shower
26°C28°C3.8 mm
6
Patchy rain nearby
26°C28°C3.3 mm
7
Patchy rain nearby
26°C28°C3.1 mm
8
Patchy rain nearby
26°C28°C1.2 mm
9
Patchy rain nearby
27°C28°C1.7 mm
10
Light rain shower
26°C27°C3.8 mm
11
Patchy rain nearby
26°C28°C1.4 mm
12
Patchy rain nearby
26°C29°C2.6 mm
13
Light rain shower
26°C28°C5.7 mm
14
Patchy rain nearby
27°C28°C4.8 mm
15
Light rain shower
26°C27°C9.9 mm
16
Light rain shower
26°C27°C13.1 mm
17
Light rain shower
26°C28°C8.5 mm
18
Light rain shower
26°C27°C9.2 mm
19
Light rain shower
26°C28°C9.4 mm
20
Patchy rain nearby
26°C28°C6.8 mm
21
Patchy rain nearby
26°C28°C4.8 mm
22
Light rain shower
26°C28°C6.1 mm
23
Light rain shower
26°C28°C7.5 mm
24
Light rain shower
27°C28°C5.0 mm
25
Light rain shower
27°C28°C6.9 mm
26
Light rain shower
25°C27°C9.5 mm
27
Patchy rain nearby
26°C29°C6.0 mm
28
Patchy rain nearby
26°C28°C6.6 mm
29
Patchy rain nearby
27°C29°C3.1 mm
30
Light rain shower
26°C28°C2.9 mm
Nearby

Where to go near Galle in September?

Compare cities and destinations near Galle in September to find another travel stop, a nearby alternative or a logical continuation of your stay in Galle.

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Best times to visit Galle All cities in Sri Lanka in September
Every month

Best time to visit Galle month by month

Compare the weather in Galle across all months of the year and open each detailed page to find the best time.

Frequently asked questions

Travel to to Galle in September: your frequently asked questions

Short answers to the questions we ask ourselves before booking for this month.

Not really. The weather conditions are unfavorable in Galle in September, which places this month 9th out of 12. A trip is still possible, but plan a flexible itinerary.

Expect an average of 29°C during the day and 27°C at night, with about 492 mm of precipitation spread over 20 rainy days.

Yes: the sea is 28°C on average in September, a pleasant temperature for swimming.

Expect about 11.0 hours of sunshine per day on average for this month.

No activity stands out as ideal this month, but conditions remain acceptable for Beach and swimming, Cultural visits and heritage, Animal observation and Diving and snorkeling.

No: this month is in Moderate crowds, with a visitor index of 28/100. It is one of the quietest periods of the year.

If your dates are flexible, the most favorable months in Galle are: January, February, March and December. Compare them before finalizing your departure.
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Temperatures are shown in degrees Celsius and precipitation in millimetres. Based on your country of connection, °F and inches may be more familiar to you.