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Colombo Weather in October, Sri Lanka

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  • What is Average Temperature?
    The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month

    Temperature

    27°C
    81°F
  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    High Temperature

    30°C
    86°F
  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    Low Temperature

    24°C
    75°F
  • What is Average Day Temperature?
    The average temperature recorded between sunrise and sunset

    Day Temperature

    27°C
    82°F
  • What is Average Night Temperature?
    The average temperature recorded between sunset and sunrise

    Night Temperature

    26°C
    80°F
  • What is Average Sea Temperature?
    Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface

    Sea Temperature

    28°C
    82°F
  • What are Average Daily Sunshine Hours?
    Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer

    Sunshine Hours

    7 hours
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

    Rainfall Days

    19 days
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

    Rainfall

    369 mm

October, 2025

Sun
Mon
Tue
Wed
1 Avg 27º 81º
Thu
2 Avg 27º 81º
Fri
3 Avg 28º 82º
Sat
4 Avg 27º 81º
5 Avg 27º 81º
6 Avg 27º 81º
7 Avg 27º 81º
8 Avg 28º 82º
9 Avg 27º 81º
10 Avg 28º 82º
11 Avg 28º 82º
12 Avg 27º 81º
13 Avg 27º 81º
14 Avg 27º 81º
15 Avg 27º 81º
16 Avg 26º 79º
17 Avg 27º 81º
18 Avg 26º 79º
19 Avg 27º 81º
20 Avg 27º 81º
21 Avg 27º 81º
22 Avg 26º 79º
23 Avg 27º 81º
24 Avg 27º 81º
25 Avg 27º 81º
26 Avg 27º 81º
27 Avg 27º 81º
28 Avg 27º 81º
29 Avg 26º 79º
30 Avg 26º 79º
31 Avg 26º 79º
Forecast
Avg Historical Daily Average

What's the weather like in Colombo in October

In Colombo, October, just like September, experiences hot and wet climate. It is also the last month of the low season as the tourist peak season begins in November right through to February. 

Temperature

It has an average temperature of about 27°C (roughly 81°F). October experiences average high temperatures of about 30°C (86°F) and average low temperatures of 24°C (75°F). 

Rainfall

October is one of the rainiest months in Colombo and it averages around 369 mm of rainfall. It is in the middle of the second rainy season and has an average of 17 rainy days.

Sunshine Hours

Although October receives quite a bit of rainfall, there is also quite a bit of sunshine. It roughly has about 7 hours of sunshine a day. 

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Things to do in Colombo in October

In October, tourists may participate in the Colombo Marathon. The event was first held in 1998 and has been held annually ever since. In the first couple of years, the marathon was held in different cities in Sri Lanka before it was officially named The Colombo Marathon in 2004. 

The marathon has gradually increased in popularity and is attracting more and more foreign athletes.  

There are a number of tourist attractions one should visit in October when there aren't many tourists. The Kelaniya temple is one of them. It is believed that the Buddha once travelled to the famous temple to settle an argument between two leaders. The temple is now famous for its magnificent sculptures and paintings. 

People interested in architecture should visit the Fort railway station to see traditional British-Indian architecture. 

October is also a brilliant month for tourists to visit the local market. The market is relatively calm as it is low season and tourists will find it easier to interact with people and learn more about the Sri Lankan culture.  

Colombo Events October

Wellness


3 Oct 2026
4 Oct 2026

October Wellness Festival – Viharamahadevi Park 💚

Wellness organisations host fitness classes, meditation sessions, nutrition talks and yoga workshops in Viharamahadevi Park. Participants join group practices on open lawns, visit health booths and view demonstrations on exercise and wellbeing. The event runs through daytime hours with rotating activities.


Expo


9 Oct 2026
11 Oct 2026

International Tea Expo – BMICH Exhibition Grounds 🌍

Tea producers, exporters and industry specialists present Ceylon tea varieties, packaging innovations and tasting sessions at BMICH. Visitors explore stalls featuring regional teas, attend brewing demonstrations and speak with representatives from estates. The expo offers sampling counters and small workshops across indoor exhibition halls.


Fashion


10 Oct 2026
11 Oct 2026

Colombo Fashion Market – Independence Square 🪡

This outdoor market features clothing, accessories and design products by independent Sri Lankan fashion labels. Stalls line the walkways around Independence Square, where visitors browse collections, meet designers and view small runway-style showcases. The event includes music zones and seasonal shopping areas.


Art Gallery


17 Oct 2026
25 Oct 2026

Colombo Art Biennale Showcase 🗓

Galleries, studios and cultural institutions display contemporary art including installations, painting, photography and performance pieces. Visitors follow mapped routes across city venues, attend opening nights and join artist talks. Exhibitions highlight emerging and established Sri Lankan artists across multiple central Colombo locations.


Carnival


23 Oct 2026
25 Oct 2026

Colombo Street Food Carnival – Galle Face Green 🦹

Vendors set up temporary kitchens along the Galle Face promenade offering Sri Lankan street foods, seafood dishes, snacks and desserts. Visitors sample menu items from numerous stalls, enjoy open-air seating and listen to evening music performances. Crowds increase after sunset as families gather for outdoor dining.