Sri Lanka in august: average Weather, Temperature and Climate, Where to go?
Weather in Sri Lanka in august 2025
Below, check out the weather forecast for the month of august for most popular cities in Sri Lanka. These datas are probabilities for the month of august from weather reports for over 10 years. The percentage indicates the probability of having the weather mentioned.
Average weather in august in Colombo
very bad weather UV index: 7
Weather at 6am
28°C
Moderate rain at times
62% of time
26%
8%
5%
Weather at 12pm
29°C
Moderate rain at times
52% of time
28%
12%
8%
Weather at 6pm
27°C
Moderate rain at times
51% of time
19%
19%
10%
Weather at 3am
26°C
44%
41%
12%
4%
Where to go in Sri Lanka in august?
Where to go in Sri Lanka in august: destination map
Where to go in each region in august?
| Central-South of Sri Lanka (Kandy, Dambulla, Nuwara Eliya...) | 27°C to 34°C | 5 à 21 days | tolerable weather* | |
| East Coast of Sri Lanka (Trincomalee, Batticaloa, Pottuvil...) | 31°C to 34°C | 3 à 9 days | 29°C | good weather |
| North of Sri Lanka (Jaffna, Mullaitivu, Vavuniya...) | 29°C to 33°C | 5 à 10 days | 28°C to 29°C | good weather |
| North Central of Sri Lanka (Anuradhapura, Wilpattu National Park, Polonnaruwa...) | 33°C to 34°C | 5 days | good weather | |
| North West of Sri Lanka (Puttalam, Kurunegala, Chilaw...) | 30°C to 31°C | 5 à 20 days | 27°C | good weather* |
| Southern Coast of Sri Lanka (Galle, Tangalle, Yala National Park...) | 29°C to 31°C | 3 à 23 days | 28°C | good weather* |
| West Coast of Sri Lanka (Colombo, Negombo, Kalutara...) | 29°C to 30°C | 20 à 23 days | 27°C to 28°C | very bad weather* |
Where should you go in Sri Lanka in august when it comes to the weather?
Remember:
The climate in Sri Lanka in august ranges from good to very bad depending on the region and city.
The climate throughout August in Sri Lanka is characterized by renewed rainfall throughout its territory. The monsoon is still present. All the localities see their climate influenced by the abundance of rain and this, in spite of a rather comfortable warmth because the temperatures continue to decrease progressively in the morning.
August in Colombo and the West Coast of the Island
The chances of having beautiful sunny days are smaller on the west coast in August. Compared to July, rains in August are more frequent and more intense. Sometimes the showers intensify even more during the day, especially towards the end of the month.
August in Jaffna and the Extreme North of the Island
Admittedly, Jaffna is experiencing a renewal of rain in August but its intensity and frequency are less important compared to those of Colombo. This allows one to enjoy the sun and warmth.
August in Trincomalee and the Northeast of the Island
The atmosphere is warmer in Trincomalee and its surroundings. Morning temperatures are around 24° C, but daytime environments are 10° C higher. The climate is drier, which favors a weather in Sri Lanka throughout August more comfortable, with more sun. Especially since the sea wind makes it possible to feel comfort.
August in Nuwara Eliya and the Central Plain
The August weather in Sri Lanka, in the Central Plain, is identical to that of July except that the rains have increased in intensity and frequency. Expect then to have rainy afternoons and evenings.
Climate in Sri Lanka in august
Climate in Colombo in august
In the month of august, maximum temperature is 29°C and minimum temperature is 28°C (for an average temperature of 29°C). The climate is burning there in the month of august. With 606mm over 23 days, rain is to be feared throughout your vacations. Consider to pack clothes for rain.
| August | |||
| Average temperature | 29°C | ||
| Highest temperature | 29°C | ||
| Lowest temperature | 28°C | ||
| Sea temperature | 27.2°C | ||
| Rainfall | 606mm | ||
| Number of days with rainfall | 23 day(s) (75%) | ||
| Humidity | 83% | ||
| Daily sunshine hours | 10 | ||
| Cloud cover | 56% | ||
| Length of day | 12:20 | ||
| Our opinion at whereandwhen.net | very bad |
Climate in Anuradhapura in august
In the month of august, maximum temperature is 33°C and minimum temperature is 28°C (for an average temperature of 31°C). The climate is burning in this city in august. With 87mm over 5 days, rainfall can happen throughout your vacations. But this is reasonably and you will not be too bothered by it.
With good weather conditions, the month of august is an advisable month to go in that area in Sri Lanka.
| August | |||
| Average temperature | 31°C | ||
| Highest temperature | 33°C | ||
| Lowest temperature | 28°C | ||
| Rainfall | 87mm | ||
| Number of days with rainfall | 5 day(s) (16%) | ||
| Humidity | 71% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 46% | ||
| Length of day | 12:23 | ||
| Our opinion at whereandwhen.net | good |
Climate in Galle in august
In august, maximum temperature is 29°C and minimum temperature is 27°C (for an average temperature of 28°C). The climate is burning in this location in this month. With 507mm over 21 days, you may find yourself often in the rain throughout your holidays. So remember to bring Rain coats.
| August | |||
| Average temperature | 28°C | ||
| Highest temperature | 29°C | ||
| Lowest temperature | 27°C | ||
| Sea temperature | 27.4°C | ||
| Rainfall | 507mm | ||
| Number of days with rainfall | 21 day(s) (68%) | ||
| Humidity | 82% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 49% | ||
| Length of day | 12:19 | ||
| Our opinion at whereandwhen.net | very bad |
Climate in Jaffna in august
In the month of august, maximum temperature is 29°C and minimum temperature is 28°C (for an average temperature of 29°C). The climate is very hot in that locality in the month of august. With 101mm over 5 days, rain may occur during your trip. But this is moderate and it is only of temporary showers.
With proper weather, the month of august is okay (but not good month) for traveling in this city in Sri Lanka.
| August | |||
| Average temperature | 29°C | ||
| Highest temperature | 29°C | ||
| Lowest temperature | 28°C | ||
| Sea temperature | 28.9°C | ||
| Rainfall | 101mm | ||
| Number of days with rainfall | 5 day(s) (17%) | ||
| Humidity | 80% | ||
| Daily sunshine hours | 12 | ||
| Cloud cover | 32% | ||
| Length of day | 12:26 | ||
| Our opinion at whereandwhen.net | good |
Climate in Kandy in august
In august, maximum temperature is 30°C and minimum temperature is 25°C (for an average temperature of 27°C). The climate is burning in that locality in august. With 197mm over 11 days, rainfall can happen for your vacations. But this is rather reasonably and it is only of temporary showers.
With a correct climate, the month of august is okay (but not good time) for traveling in this city.
| August | |||
| Average temperature | 27°C | ||
| Highest temperature | 30°C | ||
| Lowest temperature | 25°C | ||
| Rainfall | 197mm | ||
| Number of days with rainfall | 11 day(s) (37%) | ||
| Humidity | 77% | ||
| Daily sunshine hours | 11 | ||
| Cloud cover | 34% | ||
| Length of day | 12:21 | ||
| Our opinion at whereandwhen.net | good |
All cities in Sri Lanka in august
| Colombo in august | very bad weather |
| Anuradhapura in august | good weather |
| Galle in august | very bad weather |
| Jaffna in august | good weather |
| Kandy in august | good weather |
| Trincomalee in august | good weather |
| Batticaloa in august | good weather |
| Chilaw in august | tolerable weather |
| Dambulla in august | good weather |
| Kalutara in august | very bad weather |
| Kurunegala in august | good weather |
| Mullaitivu in august | good weather |
| Negombo in august | tolerable weather |
| Nuwara Eliya in august | tolerable weather |
| Wilpattu National Park in august | good weather |
| Yala National Park in august | perfect weather |
| Polonnaruwa in august | good weather |
| Pottuvil in august | good weather |
| Puttalam in august | good weather |
| Tangalle in august | good weather |
| Vavuniya in august | good weather |
Weather data for Sri Lanka in august:
Weather data for Sri Lanka in august is derived from an average of the weather forecast since 2009 in Sri Lanka. There is a margin of error and these forecasts are to be considered as general information only. The weather in Sri Lanka can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Sri Lanka.