Colombo Weather in October

Colombo in October averages 30°C (86°F) during the day and 25°C (77°F) at night. This is the wettest month of the year.

Rainfall in Colombo in October

As part of the rainy season, Colombo sees around 16 days of rain in October, with an average of 355 mm (14 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.

Temperature in Colombo in October

If you're visiting Colombo in October, expect highs of 30°C (86°F) and overnight lows around 25°C (77°F). Mornings and evenings are often more comfortable than the peak afternoon hours. With lows around 25°C (77°F), the nights are warm enough that a sheet is usually all you need for bedding.

Sunshine in Colombo in October

With approximately 202 hours of sunshine, the days are filled with clear skies during the day. Rain typically falls in the afternoon or evening, keeping mornings and early parts of the day sunny.

Wind Speed in Colombo in October

October has wind speeds averaging 1 m/s (2 knots). You can expect very gentle conditions with light air movement on typical days. Since this is an average, daily weather varies from perfectly still moments to some breezier days.

Average water temperature in October

The water is 28°C (82°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January typically offers the best weather for Colombo.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Sri Lanka, check out our Colombo's climate page.

Colombo Temperature in October

Min Temperature 25°C (77°F)  

Max Temperature 30°C (86°F)  

Water Temperature 28°C (82°F)  

Chance of Rain 52%  

Precipitation 355 mm (14 in)  

Rainy days 16 days  

Humidity 77%  

Windspeed 1 m/s (2 knots)  

Sunshine 202 hours  

Percentage Sunshine  

Daily Historical Temperatures

47-year average (1976-2025)

Based on our historical records, temperatures in Colombo typically stay consistent throughout October, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 25°C (77°F).

Average temperatures in October

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

‹ January February March April May June July August September October November December ›

Daily Historical Precipitation

47-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in October

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

‹ January February March April May June July August September October November December ›

Historical weather for Colombo in October

Browse day-by-day weather records for Colombo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Colombo historical weather extremes in October

Our historical data for Colombo spans 2000 to 2025, revealing these weather extremes.

• The hottest October day on record in Colombo reached 34°C (93°F) (October 29, 2010).
• Colombo experienced its chilliest October day on October 6, 2000, reaching only 25°C (77°F).
• Nighttime temperatures dropped to 19°C (66°F) on October 5, 2019, marking the coldest October night on record.
• The wettest October day on record brought 202 mm (8 in) of precipitation to Colombo (October 13, 2022).

What to Wear in Colombo in October

Warm but pleasant conditions in Colombo in October. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. The water temperature sits at about 28°C (82°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Colombo in October

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

8/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Sri Lanka, check out our Colombo's climate page.

More climate data for Colombo

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Colombo climate overview or explore weather in Sri Lanka.