Colombo in August
In August, Colombo averages 29°C (84°F) during the day and 25°C (77°F) at night, with frequent rain — about 15 days of the month see precipitation (115 mm total).
High seasonConditions are warm and beach-friendly. Plan for unsettled weather and bring rain gear.
August offers comfortable temperatures in Colombo, with some rain to plan around.
How August compares to the rest of the year in Colombo
August is one of the coolest months in Colombo (12th of 12) and moderately rainy compared to the rest of the year (8th of 12). Daytime temperature runs 1°C below the annual average (30°C). August runs roughly the same as July (29°C) and warms a further 1°C into September (30°C).
August sunrise & sunset in Colombo
Times shown for Colombo local time (Asia/Colombo), calculated for the 15th of August. They shift by a few minutes day to day across the month.
Photography light in Colombo — August
Golden-hour and blue-hour windows for the 15th of August, in Colombo's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Colombo in August
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on August's tier (High season) and Colombo's popularity.
Crowds & pricing — August in Colombo
This is a busy month in Colombo — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.
Why this tier: comfortable tourism weather Northern Hemisphere summer holidays
Sun & mosquito risk — August in Colombo
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Colombo in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 31°C / 88°F | 22°C / 72°F | 75 mm | 8 | 0 |
| February | 31°C / 88°F | 22°C / 72°F | 65 mm | 6 | 0 |
| March | 32°C / 90°F | 23°C / 73°F | 135 mm | 10 | 0 |
| April | 32°C / 90°F | 24°C / 75°F | 235 mm | 15 | 0 |
| May | 31°C / 88°F | 25°C / 77°F | 395 mm | 21 | 0 |
| June | 30°C / 86°F | 25°C / 77°F | 225 mm | 19 | 0 |
| July | 29°C / 84°F | 25°C / 77°F | 135 mm | 15 | 0 |
| August | 29°C / 84°F | 25°C / 77°F | 115 mm | 15 | 0 |
| September | 30°C / 86°F | 25°C / 77°F | 170 mm | 16 | 0 |
| October | 30°C / 86°F | 24°C / 75°F | 360 mm | 21 | 0 |
| November | 30°C / 86°F | 23°C / 73°F | 330 mm | 18 | 0 |
| December | 30°C / 86°F | 23°C / 73°F | 165 mm | 12 | 0 |
Other cities with similar August weather
🌍 See the full ranked list of climate twins for Colombo in August →
Frequently asked questions
How hot is Colombo in August?
In August, Colombo averages a high of 29°C (84°F) and a low of 25°C (77°F) — generally warm.
Does it rain a lot in Colombo in August?
August is quite rainy in Colombo, with about 15 rainy days on average.
Is August a good time to visit Colombo?
August is warm but on the rainy side. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Colombo in August?
Pack lightweight, breathable clothing, sunglasses and sunscreen, plus a compact umbrella or rain jacket. See the full August packing list for Colombo for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.