Very hot in Apr
34°C average high
avg high · 18° at night
25°C+ on almost every day · often 35°C+
Sri Lanka
Sri Lanka (Colombo) weather in April
Is it warm? Yes. April in Sri Lanka (Colombo) is hot: afternoons average 31°C and nights 25°C. Most days (80%) peak between 29°C and 32°C.
Hot · average high
31°C
25°C or more on almost every day.
- Average low25°overnight
- Sea31°average, 2023–2025
- Rainy days21166 mm in the month
- SkyMostly cloudy66% cloud · 10% clear days
How warm it really gets
Every April afternoon from 2011–2025: 450 days. Most (80%) peaked between 29° and 32°.
April, year by year
The average April high in each year. The warmest, 2016, averaged 33°C; the coolest, 2011, 30°C.
Compared with home
Average April highs. Expect rain on about 21 days (166 mm in a typical month).
- Sri Lanka (Colombo)31°
- London14°
- Manchester13°
- Cork12°
- Dublin12°
- Glasgow11°
- Belfast11°
Warmer in April, not much further
Flying times are estimates from Dublin; Sri Lanka (Colombo) is about 11h 45m.
Hot in Apr
32°C average high
avg high · 22° at night
25°C+ on almost every day
Very hot in Apr
33°C average high
avg high · 21° at night
25°C+ on almost every day · often 35°C+
Air: ERA5 reanalysis via Open-Meteo, 2011–2025. Sea: Copernicus Marine analysis via Open-Meteo, 2023–2025. Rainy day = 2 mm or more. Clear day = average cloud cover of 30% or less. These are averages of past weather, not a forecast. Methodology