Colombo, Sri Lanka Climate by Month
Colombo, Western Province, Sri Lanka
Hot all year, with rain spread through the year.
Hot all year, with rain spread through the year: that's Colombo's climate in short. Expect highs of 91°F (33°C) in April and 87°F (31°C) in July, with the coldest nights (January) near 73°F (23°C). It gets 103 in (2623 mm) of rain a year, spread across the months.
- Warmest month
- 91°F(33°C)
- Average high, April
- Coldest nights
- 73°F(23°C)
- Average low, January
- Rain per year
- 103 in(2623 mm)
- No clear rainy season
- Humidity
- 77%
- Sunniest: March
Best and worst months in Colombo
Best for weatherThe most comfortable weather comes in January, February and August, with highs around 89°F (32°C) and about 3.5 in (89 mm) of rain a month.
Least pleasantOctober is the least pleasant month: it's the wettest, with 17 in (444 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in January.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Colombo weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuaryBest | 89°F(32°C) | 73°F(23°C) | 2.8 in(70 mm) | 71% | 4.9 |
| FebFebruaryBest | 90°F(32°C) | 74°F(23°C) | 3.6 in(92 mm) | 72% | 5.4 |
| MarMarch | 91°F(33°C) | 76°F(24°C) | 5.6 in(142 mm) | 75% | 5.8 |
| AprApril | 91°F(33°C) | 77°F(25°C) | 11 in(280 mm) | 78% | 5.5 |
| MayMay | 89°F(32°C) | 79°F(26°C) | 14 in(357 mm) | 80% | 5.0 |
| JunJune | 88°F(31°C) | 79°F(26°C) | 7.7 in(196 mm) | 80% | 4.9 |
| JulJuly | 87°F(31°C) | 78°F(26°C) | 5.0 in(126 mm) | 79% | 5.0 |
| AugAugustBest | 87°F(31°C) | 78°F(26°C) | 4.2 in(106 mm) | 78% | 5.2 |
| SepSeptember | 87°F(31°C) | 78°F(25°C) | 9.1 in(230 mm) | 80% | 5.2 |
| OctOctober | 88°F(31°C) | 76°F(25°C) | 17 in(444 mm) | 80% | 4.8 |
| NovNovember | 88°F(31°C) | 75°F(24°C) | 16 in(404 mm) | 79% | 4.5 |
| DecDecember | 89°F(31°C) | 74°F(23°C) | 6.9 in(176 mm) | 74% | 4.4 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
Places with a similar climate
All 20 places like Colombo →- 🇱🇰KurunegalaNorth Western Province, Sri Lanka · Pop. 29k98%matchSame daytime highsSame humidityColombo vs Kurunegala →
- 🇱🇰GalleSouthern Province, Sri Lanka · Pop. 93k98%matchSame nighttime lowsSame sunshineColombo vs Galle →
- 🇱🇰BeliattaSouthern Province, Sri Lanka · Pop. 59k97%matchSame nighttime lowsSame humidityColombo vs Beliatta →
- 🇨🇴CimitarraSantander Department, Colombia · Pop. 51k95%matchSame sunshineSame humidityColombo vs Cimitarra →
- 🇲🇾Kota Kuala MudaKedah, Malaysia · Pop. 545k95%matchSame daytime highsSame nighttime lowsColombo vs Kota Kuala Muda →