Colombo

Colombo District Weather in August

Average temperatures, rainfall, sunshine and the best places to visit in Colombo District, Sri Lanka in August.

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Colombo Mount Lavinia Dehiwala Nugegoda

Considering a trip to Colombo District, Sri Lanka this August and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in Colombo District in August

Colombo District, Sri Lanka is a region in Sri Lanka. August in Colombo District generally has very warm temperatures, with heavy precipitation.

Temperatures

You can expect very warm maximum daytime temperatures of around 30°C (86°F) and nighttime temperatures around 26°C (79°F) in Colombo. The temperatures mentioned for daytime and nighttime are general averages. However there can be days that surpass these temperatures. So equip yourself with clothing that can handle the potential heat.

To explore the conditions in Colombo District, Sri Lanka in more detail, check the map below.

Precipitation

In August, precipitation varies across different areas. From heavy rainfall in Colombo with an average of 211 mm (8.3 in) to heavy rainfall in Avissawella with 302 mm (12 in).

Average sunshine

Sunshine is generally plentiful throughout many areas. Colombo enjoys about 202 hours of sunlight, ideal for those seeking sunny weather.

Explore Colombo District by month

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

Best Places to Visit in Colombo District in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Colombo District.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Colombo District

What is the weather like in August for some of the most popular destinations in Colombo District, Sri Lanka?

Temperature range in Colombo District (August)

Precipitation variation in Colombo District (August)

Colombo

In August Colombo generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« July
August
September »
July
August
September
Max temperature
30°C (86°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
25°C (77°F)
Monthly sun hours
202 hours
202 hours
189 hours
Monthly rainfall
230 mm (9.1 in)
211 mm (8.3 in)
262 mm (10 in)
Monthly rainy days
11 days
10 days
14 days
Weather conditions
poor
poor
poor
Climate in Colombo →

Mount Lavinia

In August Mount Lavinia generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« July
August
September »
July
August
September
Max temperature
30°C (86°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
25°C (77°F)
Monthly sun hours
202 hours
202 hours
189 hours
Monthly rainfall
233 mm (9.2 in)
214 mm (8.4 in)
264 mm (10 in)
Monthly rainy days
11 days
10 days
14 days
Weather conditions
poor
poor
poor
Climate in Mount Lavinia →

Dehiwala

In August Dehiwala generally has high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 26°C (79°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« July
August
September »
July
August
September
Max temperature
30°C (86°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
26°C (79°F)
25°C (77°F)
Monthly sun hours
202 hours
202 hours
189 hours
Monthly rainfall
232 mm (9.1 in)
213 mm (8.4 in)
263 mm (10 in)
Monthly rainy days
11 days
10 days
14 days
Weather conditions
poor
poor
poor
Climate in Dehiwala →

Nugegoda

In August Nugegoda generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« July
August
September »
July
August
September
Max temperature
30°C (86°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
25°C (77°F)
25°C (77°F)
Monthly sun hours
202 hours
202 hours
189 hours
Monthly rainfall
236 mm (9.3 in)
216 mm (8.5 in)
265 mm (10 in)
Monthly rainy days
11 days
10 days
14 days
Weather conditions
poor
poor
poor
Climate in Nugegoda →

Boralesgamuwa

In August Boralesgamuwa generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 25°C (77°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« July
August
September »
July
August
September
Max temperature
30°C (86°F)
30°C (86°F)
30°C (86°F)
Min temperature
26°C (79°F)
25°C (77°F)
25°C (77°F)
Monthly sun hours
202 hours
202 hours
189 hours
Monthly rainfall
239 mm (9.4 in)
219 mm (8.6 in)
267 mm (11 in)
Monthly rainy days
11 days
10 days
14 days
Weather conditions
poor
poor
poor
Climate in Boralesgamuwa →

Is your destination not in the list? Have a look at all destinations in Colombo District, in Sri Lanka.

In our records: Sri Lanka August extremes

Notable August records observed across cities in Sri Lanka in our climate database (1995 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest August day in Sri Lanka reached 40°C (104°F) in Polonnaruwa on August 11, 2023.

Popular cities in August

Day & night temperatures, rainfall and average weather in Colombo District in August.

City Weather Day temp Night temp Rainfall
Colombo 30°C (86°F) 26°C (79°F) 211 mm (8.3 in)
Mount Lavinia 30°C (86°F) 26°C (79°F) 214 mm (8.4 in)
Dehiwala 30°C (86°F) 26°C (79°F) 213 mm (8.4 in)
Nugegoda 30°C (86°F) 25°C (77°F) 216 mm (8.5 in)
Boralesgamuwa 30°C (86°F) 25°C (77°F) 219 mm (8.6 in)
Sri Jayewardenepura Kotte 30°C (86°F) 25°C (77°F) 218 mm (8.6 in)

Colombo District weather in August: frequently asked questions

What is the weather like in Colombo District, Sri Lanka in August?

In August, Colombo District, Sri Lanka generally has poor weather conditions. Colombo sees daytime temperatures near 30°C (86°F), with nights cooling to roughly 26°C (79°F).

What is the average temperature in Colombo District, Sri Lanka in August?

Average temperatures in Colombo District, Sri Lanka during August range from a nighttime low near 26°C (79°F) to a daytime high around 30°C (86°F) in Colombo.

Does Colombo District, Sri Lanka get a lot of rain in August?

Rainfall in Colombo District, Sri Lanka peaks during August. Colombo averages roughly 211 mm (8.3 in), so frequent and sometimes heavy showers are the norm.

Is August a Good Time to Visit Colombo District, Sri Lanka?

In our view, August might not be the best time to travel to Colombo District, Sri Lanka with often poor weather in Colombo.

On average, the best time to visit Colombo District, Sri Lanka is in January with generally tolerable weather in Colombo. In contrast, April, May, June, July, August, September, October, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Colombo District.

Weather and climate has detailed information for every country in the world. Are you going to Sri Lanka? Get detailed historical weather averages for many cities in Sri Lanka.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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