Chilaw in May
5.9out of 10
Possible, with caveats
Warm and comfortable: highs around 30°C. Very wet: about 28 rainy days.
30°CAvg high
27°CAvg low
28Rainy days (222 mm)
12:21 hDaylight
05:57Sunrise · 18:17 Sunset
Why this score
- Warm and comfortable: highs around 30°C
- Very wet: about 28 rainy days
What to wear and pack
- T-shirts and light layers
- Shorts or a light skirt
- Rain jacket or compact umbrella
- Sunscreen, sunglasses and a hat
How reliable is the forecast?
Rain in May varies a lot between years (±3.3 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 30°C | 24°C | 37 mm | 6 | – | – | 8.2 |
| February | 31°C | 24°C | 36 mm | 6 | – | – | 7.9 |
| March | 31°C | 26°C | 68 mm | 14 | – | – | 6.7 |
| April | 30°C | 26°C | 153 mm | 25 | – | – | 5.8 |
| May | 30°C | 27°C | 222 mm | 28 | – | – | 5.9 |
| June | 29°C | 26°C | 185 mm | 26 | – | – | 6.1 |
| July | 28°C | 26°C | 133 mm | 23 | – | – | 6.1 |
| August | 28°C | 26°C | 129 mm | 22 | – | – | 6.1 |
| September | 28°C | 26°C | 181 mm | 25 | – | – | 6.1 |
| October | 29°C | 25°C | 297 mm | 26 | – | – | 6.1 |
| November | 29°C | 25°C | 259 mm | 22 | – | – | 6.1 |
| December | 29°C | 24°C | 130 mm | 14 | – | – | 7.0 |
Frequently asked questions
How hot is Chilaw in May?
Daytime highs average 30°C and nights about 27°C.
When is the best time to visit Chilaw?
The best months are January, February.