Sri Lanka in September: weather, sea & travel advice
Sri Lanka in September is especially suited to beach holidays, family holidays and city breaks. Days are around 28 °C (warm), and the sea is about 28 °C. With about 14 rainy days it is wet.
Sri Lanka · SeptemberPhoto: Luboš Holič · CC BY-SA 3.0Climate facts
- Day
- 28 °C
- Night
- 25 °C
- Sea
- 28 °C
- Rainy days
- 14 rainy days
- Sun
- 6 h/day
- Humidity
- 86 %
Suitability by travel type
BeachExcellent80/100
City breakGood68/100
ActiveLimited48/100
FamilyGood72/100
In favour
- Pleasant daytime temperatures around 28 °C
- Warm, swimmable sea (28 °C)
To consider
- Higher chance of rain (about 14 rainy days)
- High humidity (86 %)
All months at a glance
29J
29F
30M
29A
29M
28J
28J
28A
28S
28O
28N
28D
8J
6F
9M
14A
17M
13J
10J
11A
14S
16O
14N
11D
Similar destinations in September
Frequently asked questions
How warm is Sri Lanka in September?
Daytime highs average around 28 °C, with nights around 25 °C.
Can you swim in Sri Lanka in September?
The sea is about 28 °C (very warm).
Does it rain a lot in Sri Lanka in September?
On the long-term average, expect about 14 rainy days.
When is the best time to visit Sri Lanka?
The most favourable months are usually the ones highlighted on the overview page. Values are historical averages, not a forecast.