Chilaw weather in February
In February, Chilaw sees average daytime highs of 31°C and overnight lows near 25°C, with 33 mm of rain across 6 wet days and about 11.8 hours of daylight. It is the 2nd-warmest and 12th-wettest month of the year here.
Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 44% of the time in February, and the air most often feels oppressive.
Daylight stretches from about 11 h 42 min at the start of February to 11 h 48 min by month's end. Set against the rest of the year, February is Chilaw's 1st-clearest and 8th-windiest month. For the whole year in context, see Chilaw's year-round climate.
- Daytime high
- 31°
- 2nd warmest
- Overnight low
- 25°
- 3rd coldest
- Rainfall
- 33 mm
- 6 wet days
- Daylight
- 11 h 48 min
- 6:33 AM – 6:18 PM
- Cloud cover
- 49%
- 1st clearest
- Wind
- 15 km/h
- 8th windiest
- Solar energy
- 6.24 kWh/m²
- Travel score
- 5.2
- out of 10
Chilaw is large town in Puttalam district, Sri Lanka.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in February
Day-to-day highs hold fairly steady near 31°C through the month.
A typical February day in Chilaw reaches about 31°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, February runs about 1°C warmer than January and on par with March.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 30 | 24 |
| 2 | 30 | 24 |
| 3 | 30 | 24 |
| 4 | 30 | 24 |
| 5 | 30 | 24 |
| 6 | 30 | 24 |
| 7 | 30 | 24 |
| 8 | 30 | 24 |
| 9 | 30 | 24 |
| 10 | 30 | 24 |
| 11 | 30 | 24 |
| 12 | 30 | 24 |
| 13 | 31 | 24 |
| 14 | 31 | 24 |
| 15 | 31 | 25 |
| 16 | 31 | 25 |
| 17 | 31 | 25 |
| 18 | 31 | 25 |
| 19 | 31 | 25 |
| 20 | 31 | 25 |
| 21 | 31 | 25 |
| 22 | 31 | 25 |
| 23 | 31 | 25 |
| 24 | 31 | 25 |
| 25 | 31 | 25 |
| 26 | 31 | 25 |
| 27 | 31 | 25 |
| 28 | 31 | 25 |
How February really feels in Chilaw
Once humidity and wind are folded in, February averages 28 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in February is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Chilaw weather by month
How February compares with the rest of the year at a glance. February is the 2nd-warmest and 12th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 24° | 37 | 6.1 | 11.6 | 5.7 |
| Feb | 31° / 25° | 33 | 6 | 11.8 | 5.2 |
| Mar | 31° / 26° | 69 | 13.7 | 11.9 | 4.4 |
| Apr | 30° / 26° | 152 | 24.9 | 12.2 | 3.2 |
| May | 30° / 27° | 221 | 28.1 | 12.3 | 3.0 |
| Jun | 29° / 27° | 185 | 25.8 | 12.4 | 3.4 |
| Jul | 28° / 26° | 133 | 22.1 | 12.4 | 4.0 |
| Aug | 28° / 26° | 129 | 21.9 | 12.2 | 4.1 |
| Sep | 28° / 26° | 180 | 24.4 | 12 | 3.7 |
| Oct | 29° / 26° | 298 | 26.1 | 11.8 | 3.5 |
| Nov | 29° / 25° | 261 | 22.2 | 11.7 | 3.8 |
| Dec | 29° / 25° | 131 | 13.5 | 11.6 | 5.0 |
Cloud cover in February
The sky is clear or mostly clear about 44% of the time in February, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 19% of February, with mostly cloudy or overcast conditions the remaining 37%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 62 | 63 | 63 | 64 | 64 | 65 | 65 | 65 | 66 | 66 | 66 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 |
| Cloudier (%) | 45 | 44 | 43 | 42 | 41 | 40 | 39 | 38 | 38 | 37 | 37 | 36 | 36 | 35 | 35 | 35 | 34 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 | 35 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 55 | 45 |
| 2 | 56 | 44 |
| 3 | 57 | 43 |
| 4 | 58 | 42 |
| 5 | 59 | 41 |
| 6 | 60 | 40 |
| 7 | 61 | 39 |
| 8 | 62 | 38 |
| 9 | 62 | 38 |
| 10 | 63 | 37 |
| 11 | 63 | 37 |
| 12 | 64 | 36 |
| 13 | 64 | 36 |
| 14 | 65 | 35 |
| 15 | 65 | 35 |
| 16 | 65 | 35 |
| 17 | 66 | 34 |
| 18 | 66 | 34 |
| 19 | 66 | 34 |
| 20 | 65 | 35 |
| 21 | 65 | 35 |
| 22 | 65 | 35 |
| 23 | 65 | 35 |
| 24 | 65 | 35 |
| 25 | 65 | 35 |
| 26 | 65 | 35 |
| 27 | 65 | 35 |
| 28 | 65 | 35 |
Chance of precipitation in February
Chilaw gets around 33 mm of rain over 6 wet days in February, the driest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 21% and peaks near 25% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 22 | 22 | 23 | 23 | 24 | 25 |
| Rain chance (%) | |
|---|---|
| 1 | 20 |
| 2 | 20 |
| 3 | 20 |
| 4 | 21 |
| 5 | 21 |
| 6 | 21 |
| 7 | 21 |
| 8 | 21 |
| 9 | 21 |
| 10 | 21 |
| 11 | 21 |
| 12 | 21 |
| 13 | 21 |
| 14 | 20 |
| 15 | 20 |
| 16 | 20 |
| 17 | 20 |
| 18 | 20 |
| 19 | 20 |
| 20 | 20 |
| 21 | 20 |
| 22 | 21 |
| 23 | 22 |
| 24 | 22 |
| 25 | 23 |
| 26 | 23 |
| 27 | 24 |
| 28 | 25 |
Humidity in February
Most of February feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, February lands in the oppressive band about 66% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 2 | 2 |
| Muggy (%) | 37 | 36 | 35 | 34 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 27 | 26 | 26 | 25 | 25 | 24 | 23 | 23 | 22 | 21 | 21 | 20 | 19 | 19 | 18 | 17 | 16 |
| Oppressive (%) | 59 | 60 | 61 | 61 | 62 | 63 | 64 | 64 | 64 | 65 | 65 | 65 | 65 | 65 | 66 | 65 | 66 | 68 | 67 | 68 | 68 | 69 | 69 | 69 | 68 | 68 | 69 | 69 |
| Miserable (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 3 | 37 | 59 | 1 |
| 2 | 3 | 36 | 60 | 1 |
| 3 | 3 | 35 | 61 | 1 |
| 4 | 4 | 34 | 61 | 1 |
| 5 | 4 | 33 | 62 | 1 |
| 6 | 4 | 32 | 63 | 1 |
| 7 | 4 | 31 | 64 | 1 |
| 8 | 4 | 30 | 64 | 2 |
| 9 | 5 | 29 | 64 | 2 |
| 10 | 5 | 28 | 65 | 2 |
| 11 | 5 | 27 | 65 | 3 |
| 12 | 5 | 27 | 65 | 3 |
| 13 | 5 | 26 | 65 | 4 |
| 14 | 5 | 26 | 65 | 4 |
| 15 | 5 | 25 | 66 | 4 |
| 16 | 5 | 25 | 65 | 5 |
| 17 | 5 | 24 | 66 | 5 |
| 18 | 4 | 23 | 68 | 5 |
| 19 | 4 | 23 | 67 | 6 |
| 20 | 4 | 22 | 68 | 6 |
| 21 | 4 | 21 | 68 | 7 |
| 22 | 3 | 21 | 69 | 7 |
| 23 | 3 | 20 | 69 | 8 |
| 24 | 3 | 19 | 69 | 9 |
| 25 | 3 | 19 | 68 | 10 |
| 26 | 3 | 18 | 68 | 11 |
| 27 | 2 | 17 | 69 | 12 |
| 28 | 2 | 16 | 69 | 13 |
Wind in February
Winds average 15 km/h in February.
Across February, daily wind ranges from about 13 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 18 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 18 | light breeze |
| 2 | 17 | light breeze |
| 3 | 17 | light breeze |
| 4 | 17 | light breeze |
| 5 | 17 | light breeze |
| 6 | 17 | light breeze |
| 7 | 16 | light breeze |
| 8 | 16 | light breeze |
| 9 | 16 | light breeze |
| 10 | 16 | light breeze |
| 11 | 16 | light breeze |
| 12 | 15 | light breeze |
| 13 | 15 | light breeze |
| 14 | 15 | light breeze |
| 15 | 15 | light breeze |
| 16 | 15 | light breeze |
| 17 | 15 | light breeze |
| 18 | 14 | light breeze |
| 19 | 14 | light breeze |
| 20 | 14 | light breeze |
| 21 | 14 | light breeze |
| 22 | 14 | light breeze |
| 23 | 14 | light breeze |
| 24 | 13 | light breeze |
| 25 | 13 | light breeze |
| 26 | 13 | light breeze |
| 27 | 13 | light breeze |
| 28 | 13 | light breeze |
Sunrise & sunset in February
Daylight runs from about 11 h 42 min at the start of February to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 6 minutes over February. Sunrise moves from 6:34 AM to 6:29 AM, and sunset from 6:15 PM to 6:19 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.7 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 |
| Sunrise (AM) | 6:34 | 6:34 | 6:34 | 6:34 | 6:34 | 6:34 | 6:34 | 6:34 | 6:34 | 6:34 | 6:34 | 6:33 | 6:33 | 6:33 | 6:33 | 6:33 | 6:32 | 6:32 | 6:32 | 6:32 | 6:31 | 6:31 | 6:31 | 6:30 | 6:30 | 6:30 | 6:29 | 6:29 |
| Sunset (PM) | 6:15 | 6:15 | 6:15 | 6:15 | 6:16 | 6:16 | 6:16 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:18 | 6:18 | 6:18 | 6:18 | 6:18 | 6:18 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 | 6:19 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.7 | 6:34 | 6:15 |
| 2 | 11.7 | 6:34 | 6:15 |
| 3 | 11.7 | 6:34 | 6:15 |
| 4 | 11.7 | 6:34 | 6:15 |
| 5 | 11.7 | 6:34 | 6:16 |
| 6 | 11.7 | 6:34 | 6:16 |
| 7 | 11.7 | 6:34 | 6:16 |
| 8 | 11.7 | 6:34 | 6:17 |
| 9 | 11.7 | 6:34 | 6:17 |
| 10 | 11.7 | 6:34 | 6:17 |
| 11 | 11.7 | 6:34 | 6:17 |
| 12 | 11.7 | 6:33 | 6:17 |
| 13 | 11.7 | 6:33 | 6:18 |
| 14 | 11.7 | 6:33 | 6:18 |
| 15 | 11.8 | 6:33 | 6:18 |
| 16 | 11.8 | 6:33 | 6:18 |
| 17 | 11.8 | 6:32 | 6:18 |
| 18 | 11.8 | 6:32 | 6:18 |
| 19 | 11.8 | 6:32 | 6:19 |
| 20 | 11.8 | 6:32 | 6:19 |
| 21 | 11.8 | 6:31 | 6:19 |
| 22 | 11.8 | 6:31 | 6:19 |
| 23 | 11.8 | 6:31 | 6:19 |
| 24 | 11.8 | 6:30 | 6:19 |
| 25 | 11.8 | 6:30 | 6:19 |
| 26 | 11.8 | 6:30 | 6:19 |
| 27 | 11.8 | 6:29 | 6:19 |
| 28 | 11.8 | 6:29 | 6:19 |
Solar energy in February
Average shortwave solar energy reaching the ground each day in February, about 6.24 kWh/m².
For context, solar energy here swings from a low near 4.7 kWh/m² to a high of 6.51 kWh/m² in March across the year — February's 6.24 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.9 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.1 | 6.1 | 6.1 | 6.2 | 6.2 | 6.2 | 6.2 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.5 | 6.5 | 6.5 | 6.5 |
| Level | Bright | Bright | Bright | Bright | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.9 | Bright |
| 2 | 6.0 | Bright |
| 3 | 6.0 | Bright |
| 4 | 6.0 | Bright |
| 5 | 6.0 | Intense |
| 6 | 6.0 | Intense |
| 7 | 6.1 | Intense |
| 8 | 6.1 | Intense |
| 9 | 6.1 | Intense |
| 10 | 6.2 | Intense |
| 11 | 6.2 | Intense |
| 12 | 6.2 | Intense |
| 13 | 6.2 | Intense |
| 14 | 6.3 | Intense |
| 15 | 6.3 | Intense |
| 16 | 6.3 | Intense |
| 17 | 6.3 | Intense |
| 18 | 6.3 | Intense |
| 19 | 6.4 | Intense |
| 20 | 6.4 | Intense |
| 21 | 6.4 | Intense |
| 22 | 6.4 | Intense |
| 23 | 6.4 | Intense |
| 24 | 6.4 | Intense |
| 25 | 6.5 | Intense |
| 26 | 6.5 | Intense |
| 27 | 6.5 | Intense |
| 28 | 6.5 | Intense |
Hazard calendar for Chilaw
None of Chilaw's seasonal hazards are active in February. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Chilaw sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.
Is February a good time to visit Chilaw?
Our two travel scores rate February for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
February is a reasonable time to visit Chilaw for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Chilaw in February
From February's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In February, Chilaw sees daytime highs around 31°C and nights near 25°C. Pack light clothes and sun protection. About 6 days see rain.
Sea temperature near Chilaw in February
The nearest coast averages about 28°C in February — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 20 km away) is warmest in April at about 30°C and coldest in August near 27°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 28 | 28 | 29 | 30 | 29 | 28 | 27 | 27 | 28 | 28 | 29 | 28 |
| Comfort | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Warm |
| Feb | 28 | Warm |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 29 | Tropical |
| Jun | 28 | Tropical |
| Jul | 27 | Warm |
| Aug | 27 | Warm |
| Sep | 28 | Warm |
| Oct | 28 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Tropical |
UV index in Chilaw in February
Clear-sky midday UV in February peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Chilaw peaks around April 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 9 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 10 | 13 | 13 | 13 | 13 | 11 | 12 | 13 | 13 | 12 | 10 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 13 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 13 | Extreme |
| Jun | 11 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 13 | Extreme |
| Oct | 12 | Extreme |
| Nov | 10 | Extreme |
| Dec | 9 | Very high |
Air quality in Chilaw in February
Average fine-particle pollution (PM2.5) through the year — so you can see where February falls, not just the annual average.
Air quality in Chilaw is worst in March — around 30 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (August, 17 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 23 | 23 | 30 | 28 | 24 | 18 | 17 | 17 | 17 | 19 | 24 | 23 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 23 | Moderate |
| Feb | 23 | Moderate |
| Mar | 30 | Moderate |
| Apr | 28 | Moderate |
| May | 24 | Moderate |
| Jun | 18 | Moderate |
| Jul | 17 | Moderate |
| Aug | 17 | Moderate |
| Sep | 17 | Moderate |
| Oct | 19 | Moderate |
| Nov | 24 | Moderate |
| Dec | 23 | Moderate |
Where is Chilaw?
Chilaw sits at 7.6°N, 79.8°E, 8 m above sea level, in Sri Lanka. The nearest listed city is Negombo, 41 km away.
Topography around Chilaw
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Chilaw.
Within 3 km, the terrain around Chilaw has only modest variations in elevation — a maximum elevation change of 15 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 67 m; within 80 km, large variations in elevation — a maximum elevation change of 977 m.
The land around Chilaw is covered by water (38%) and trees (33%) within 3 km, water (52%) and trees (39%) within 16 km, and trees (53%) and water (37%) within 80 km.
Sri Lanka travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type D / G / M
- 230 V · 50 Hz
- Prices
- ≈ 27% of US
- price level, 2025
- GDP per capita
- $5,002
- 2025
- Happiness
- 4.0 / 10
- World Happiness, 2025
- Safe drinking water
- 47%
- of population, 2024
- Homicide rate
- 3.3
- per 100k, 2019
- Road deaths
- 19.7
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 486
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Chilaw (7.5758°, 79.7953°, elevation 8 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).