Ratnapura weather in March
In March, Ratnapura sees average daytime highs of 28°C and overnight lows near 20°C, with 309 mm of rain across 27.4 wet days and about 12 hours of daylight. It is the 1st-warmest and 6th-wettest month of the year here.
Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 17% of the time in March, and the air most often feels oppressive.
Daylight stretches from about 11 h 54 min at the start of March to 12 hours by month's end. Set against the rest of the year, March is Ratnapura's 1st-clearest and 9th-windiest month. For the whole year in context, see Ratnapura's year-round climate.
- Daytime high
- 28°
- 1st warmest
- Overnight low
- 20°
- 3rd coldest
- Rainfall
- 309 mm
- 27.4 wet days
- Daylight
- 12 hours
- 6:19 AM – 6:17 PM
- Cloud cover
- 63%
- 1st clearest
- Wind
- 3 km/h
- 9th windiest
- Solar energy
- 6.05 kWh/m²
- Travel score
- 3.7
- out of 10
Ratnapura is city in Sabaragamuwa, Sri Lanka.
- Density
- 2,392/km²
- people per km²
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in March
Day-to-day highs hold fairly steady near 28°C through the month.
A typical March day in Ratnapura reaches about 28°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, March runs on par with February and on par with April.
| 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 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 19 |
| 2 | 28 | 19 |
| 3 | 28 | 19 |
| 4 | 28 | 20 |
| 5 | 28 | 20 |
| 6 | 28 | 20 |
| 7 | 28 | 20 |
| 8 | 28 | 20 |
| 9 | 28 | 20 |
| 10 | 28 | 20 |
| 11 | 28 | 20 |
| 12 | 28 | 20 |
| 13 | 28 | 20 |
| 14 | 28 | 20 |
| 15 | 28 | 20 |
| 16 | 28 | 20 |
| 17 | 28 | 20 |
| 18 | 28 | 20 |
| 19 | 28 | 20 |
| 20 | 28 | 20 |
| 21 | 28 | 20 |
| 22 | 28 | 20 |
| 23 | 28 | 20 |
| 24 | 28 | 20 |
| 25 | 28 | 20 |
| 26 | 28 | 20 |
| 27 | 28 | 20 |
| 28 | 28 | 20 |
| 29 | 28 | 20 |
| 30 | 28 | 20 |
| 31 | 28 | 20 |
Ratnapura weather by month
How March compares with the rest of the year at a glance. March is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 27° / 19° | 308 | 22.8 | 11.7 | 4.5 |
| Feb | 28° / 19° | 279 | 20.5 | 11.8 | 4.6 |
| Mar | 28° / 20° | 309 | 27.4 | 12 | 3.7 |
| Apr | 28° / 21° | 468 | 29 | 12.1 | 3.3 |
| May | 27° / 22° | 310 | 29.6 | 12.3 | 3.4 |
| Jun | 26° / 22° | 267 | 27.9 | 12.4 | 3.6 |
| Jul | 26° / 21° | 246 | 28.5 | 12.3 | 3.7 |
| Aug | 26° / 21° | 228 | 28.3 | 12.2 | 3.7 |
| Sep | 26° / 21° | 246 | 26 | 12 | 3.9 |
| Oct | 27° / 21° | 497 | 27.5 | 11.9 | 3.8 |
| Nov | 27° / 20° | 661 | 26.9 | 11.7 | 3.8 |
| Dec | 27° / 20° | 515 | 26.1 | 11.6 | 4.0 |
Cloud cover in March
The sky is clear or mostly clear about 17% of the time in March, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 29% of March, with mostly cloudy or overcast conditions the remaining 54%. Skies tend to cloud over as the month goes on.
| 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 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 46 | 46 | 46 | 47 | 47 | 48 | 48 | 47 | 49 | 49 | 50 | 50 | 50 | 49 | 50 | 50 | 49 | 49 | 49 | 48 | 47 | 46 | 46 | 44 | 43 | 42 | 41 | 39 | 39 | 38 | 37 |
| Cloudier (%) | 54 | 54 | 54 | 53 | 53 | 52 | 52 | 53 | 51 | 51 | 50 | 50 | 50 | 51 | 50 | 50 | 51 | 51 | 51 | 52 | 53 | 54 | 54 | 56 | 57 | 58 | 59 | 61 | 61 | 62 | 63 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 46 | 54 |
| 2 | 46 | 54 |
| 3 | 46 | 54 |
| 4 | 47 | 53 |
| 5 | 47 | 53 |
| 6 | 48 | 52 |
| 7 | 48 | 52 |
| 8 | 47 | 53 |
| 9 | 49 | 51 |
| 10 | 49 | 51 |
| 11 | 50 | 50 |
| 12 | 50 | 50 |
| 13 | 50 | 50 |
| 14 | 49 | 51 |
| 15 | 50 | 50 |
| 16 | 50 | 50 |
| 17 | 49 | 51 |
| 18 | 49 | 51 |
| 19 | 49 | 51 |
| 20 | 48 | 52 |
| 21 | 47 | 53 |
| 22 | 46 | 54 |
| 23 | 46 | 54 |
| 24 | 44 | 56 |
| 25 | 43 | 57 |
| 26 | 42 | 58 |
| 27 | 41 | 59 |
| 28 | 39 | 61 |
| 29 | 39 | 61 |
| 30 | 38 | 62 |
| 31 | 37 | 63 |
Chance of precipitation in March
Ratnapura gets around 309 mm of rain over 27.4 wet days in March. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 88% and peaks near 95% on the wettest days. The odds climb toward the end of the month.
| 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 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 80 | 81 | 81 | 82 | 82 | 83 | 84 | 84 | 85 | 85 | 86 | 86 | 87 | 87 | 88 | 88 | 89 | 90 | 90 | 91 | 92 | 92 | 92 | 93 | 93 | 93 | 94 | 94 | 94 | 95 | 95 |
| Rain chance (%) | |
|---|---|
| 1 | 80 |
| 2 | 81 |
| 3 | 81 |
| 4 | 82 |
| 5 | 82 |
| 6 | 83 |
| 7 | 84 |
| 8 | 84 |
| 9 | 85 |
| 10 | 85 |
| 11 | 86 |
| 12 | 86 |
| 13 | 87 |
| 14 | 87 |
| 15 | 88 |
| 16 | 88 |
| 17 | 89 |
| 18 | 90 |
| 19 | 90 |
| 20 | 91 |
| 21 | 92 |
| 22 | 92 |
| 23 | 92 |
| 24 | 93 |
| 25 | 93 |
| 26 | 93 |
| 27 | 94 |
| 28 | 94 |
| 29 | 94 |
| 30 | 95 |
| 31 | 95 |
Humidity in March
Most of March feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, March lands in the oppressive band about 50% of days. Sticky, muggy-or-worse air turns up on roughly 99% 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 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 4 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Muggy (%) | 62 | 61 | 60 | 60 | 58 | 57 | 57 | 56 | 55 | 55 | 55 | 54 | 54 | 53 | 53 | 52 | 51 | 51 | 49 | 48 | 46 | 45 | 43 | 42 | 40 | 38 | 36 | 34 | 33 | 31 | 29 |
| Oppressive (%) | 34 | 35 | 36 | 37 | 39 | 40 | 41 | 42 | 43 | 43 | 44 | 45 | 45 | 46 | 46 | 47 | 48 | 49 | 51 | 52 | 54 | 55 | 57 | 58 | 60 | 62 | 64 | 66 | 67 | 69 | 71 |
| Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|
| 1 | 4 | 62 | 34 |
| 2 | 4 | 61 | 35 |
| 3 | 4 | 60 | 36 |
| 4 | 3 | 60 | 37 |
| 5 | 3 | 58 | 39 |
| 6 | 3 | 57 | 40 |
| 7 | 2 | 57 | 41 |
| 8 | 2 | 56 | 42 |
| 9 | 2 | 55 | 43 |
| 10 | 2 | 55 | 43 |
| 11 | 1 | 55 | 44 |
| 12 | 1 | 54 | 45 |
| 13 | 1 | 54 | 45 |
| 14 | 1 | 53 | 46 |
| 15 | 1 | 53 | 46 |
| 16 | 1 | 52 | 47 |
| 17 | 1 | 51 | 48 |
| 18 | 0 | 51 | 49 |
| 19 | 0 | 49 | 51 |
| 20 | 0 | 48 | 52 |
| 21 | 0 | 46 | 54 |
| 22 | 0 | 45 | 55 |
| 23 | 0 | 43 | 57 |
| 24 | 0 | 42 | 58 |
| 25 | 0 | 40 | 60 |
| 26 | 0 | 38 | 62 |
| 27 | 0 | 36 | 64 |
| 28 | 0 | 34 | 66 |
| 29 | 0 | 33 | 67 |
| 30 | 0 | 31 | 69 |
| 31 | 0 | 29 | 71 |
Wind in March
Winds average 3 km/h in March.
Across March, daily wind ranges from about 3 km/h on the calmest days to 4 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 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 3 | calm |
| 2 | 3 | calm |
| 3 | 3 | calm |
| 4 | 3 | calm |
| 5 | 3 | calm |
| 6 | 3 | calm |
| 7 | 3 | calm |
| 8 | 3 | calm |
| 9 | 3 | calm |
| 10 | 3 | calm |
| 11 | 3 | calm |
| 12 | 3 | calm |
| 13 | 3 | calm |
| 14 | 3 | calm |
| 15 | 3 | calm |
| 16 | 3 | calm |
| 17 | 3 | calm |
| 18 | 4 | calm |
| 19 | 4 | calm |
| 20 | 4 | calm |
| 21 | 4 | calm |
| 22 | 4 | calm |
| 23 | 4 | calm |
| 24 | 4 | calm |
| 25 | 4 | calm |
| 26 | 4 | calm |
| 27 | 4 | calm |
| 28 | 4 | calm |
| 29 | 4 | calm |
| 30 | 4 | calm |
| 31 | 4 | calm |
Sunrise & sunset in March
Daylight runs from about 11 h 54 min at the start of March to 12 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 6 minutes over March. Sunrise moves from 6:26 AM to 6:12 AM, and sunset from 6:17 PM to 6:15 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 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunrise (AM) | 6:26 | 6:25 | 6:25 | 6:25 | 6:24 | 6:24 | 6:23 | 6:23 | 6:23 | 6:22 | 6:22 | 6:21 | 6:21 | 6:20 | 6:20 | 6:19 | 6:19 | 6:18 | 6:18 | 6:17 | 6:17 | 6:16 | 6:16 | 6:15 | 6:15 | 6:14 | 6:14 | 6:13 | 6:13 | 6:12 | 6:12 |
| Sunset (PM) | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:17 | 6:16 | 6:16 | 6:16 | 6:16 | 6:16 | 6:16 | 6:16 | 6:16 | 6:15 | 6:15 | 6:15 | 6:15 | 6:15 | 6:15 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.9 | 6:26 | 6:17 |
| 2 | 11.9 | 6:25 | 6:17 |
| 3 | 11.9 | 6:25 | 6:17 |
| 4 | 11.9 | 6:25 | 6:17 |
| 5 | 11.9 | 6:24 | 6:17 |
| 6 | 11.9 | 6:24 | 6:17 |
| 7 | 11.9 | 6:23 | 6:17 |
| 8 | 11.9 | 6:23 | 6:17 |
| 9 | 11.9 | 6:23 | 6:17 |
| 10 | 11.9 | 6:22 | 6:17 |
| 11 | 11.9 | 6:22 | 6:17 |
| 12 | 11.9 | 6:21 | 6:17 |
| 13 | 11.9 | 6:21 | 6:17 |
| 14 | 11.9 | 6:20 | 6:17 |
| 15 | 11.9 | 6:20 | 6:17 |
| 16 | 12.0 | 6:19 | 6:17 |
| 17 | 12.0 | 6:19 | 6:17 |
| 18 | 12.0 | 6:18 | 6:16 |
| 19 | 12.0 | 6:18 | 6:16 |
| 20 | 12.0 | 6:17 | 6:16 |
| 21 | 12.0 | 6:17 | 6:16 |
| 22 | 12.0 | 6:16 | 6:16 |
| 23 | 12.0 | 6:16 | 6:16 |
| 24 | 12.0 | 6:15 | 6:16 |
| 25 | 12.0 | 6:15 | 6:16 |
| 26 | 12.0 | 6:14 | 6:15 |
| 27 | 12.0 | 6:14 | 6:15 |
| 28 | 12.0 | 6:13 | 6:15 |
| 29 | 12.0 | 6:13 | 6:15 |
| 30 | 12.0 | 6:12 | 6:15 |
| 31 | 12.0 | 6:12 | 6:15 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 6.05 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 4.23 kWh/m² to a high of 6.05 kWh/m² in March across the year — March's 6.05 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 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.9 | 5.9 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.1 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 5.9 | 5.9 | 5.8 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.9 | Bright |
| 2 | 5.9 | Bright |
| 3 | 6.0 | Bright |
| 4 | 6.0 | Bright |
| 5 | 6.0 | Bright |
| 6 | 6.0 | Bright |
| 7 | 6.0 | Bright |
| 8 | 6.0 | Bright |
| 9 | 6.0 | Intense |
| 10 | 6.0 | Intense |
| 11 | 6.0 | Intense |
| 12 | 6.0 | Intense |
| 13 | 6.0 | Intense |
| 14 | 6.0 | Intense |
| 15 | 6.0 | Intense |
| 16 | 6.1 | Intense |
| 17 | 6.1 | Intense |
| 18 | 6.1 | Intense |
| 19 | 6.1 | Intense |
| 20 | 6.1 | Intense |
| 21 | 6.1 | Intense |
| 22 | 6.1 | Intense |
| 23 | 6.1 | Intense |
| 24 | 6.0 | Intense |
| 25 | 6.0 | Intense |
| 26 | 6.0 | Intense |
| 27 | 6.0 | Bright |
| 28 | 6.0 | Bright |
| 29 | 5.9 | Bright |
| 30 | 5.9 | Bright |
| 31 | 5.8 | Bright |
Hazard calendar for Ratnapura
None of Ratnapura's seasonal hazards are active in March. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Ratnapura sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.
Is March a good time to visit Ratnapura?
Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
March is a weaker month for outdoor sightseeing in Ratnapura.
What to pack for Ratnapura in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, Ratnapura sees daytime highs around 28°C and nights near 20°C. Pack light clothes, rain gear and sun protection. About 27 days see rain.
Sea temperature near Ratnapura in March
The nearest coast averages about 29°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 59 km away) is warmest in April at about 30°C and coldest in August near 28°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 | 28 | 28 | 28 | 28 | 29 | 28 |
| Comfort | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Warm |
| Feb | 28 | Tropical |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 29 | Tropical |
| Jun | 28 | Tropical |
| Jul | 28 | Warm |
| Aug | 28 | Warm |
| Sep | 28 | Warm |
| Oct | 28 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Tropical |
UV index in Ratnapura in March
Clear-sky midday UV in March 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 Ratnapura peaks around April 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 10 (extreme).
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) | 11 | 14 | 13 | 14 | 13 | 11 | 12 | 13 | 13 | 13 | 11 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 14 | Extreme |
| Mar | 13 | Extreme |
| Apr | 14 | Extreme |
| May | 13 | Extreme |
| Jun | 11 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 13 | Extreme |
| Oct | 13 | Extreme |
| Nov | 11 | Extreme |
| Dec | 10 | Extreme |
Air quality in Ratnapura in March
Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.
Air quality in Ratnapura is worst in January — around 84 µg/m³ PM2.5 (unhealthy), about 2.8× the cleanest month (July, 29 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) | 84 | 78 | 73 | 62 | 44 | 31 | 29 | 30 | 35 | 52 | 74 | 81 |
| Level | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Moderate | Moderate | Moderate | Poor | Poor | Unhealthy | Unhealthy |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 84 | Unhealthy |
| Feb | 78 | Unhealthy |
| Mar | 73 | Unhealthy |
| Apr | 62 | Unhealthy |
| May | 44 | Poor |
| Jun | 31 | Moderate |
| Jul | 29 | Moderate |
| Aug | 30 | Moderate |
| Sep | 35 | Poor |
| Oct | 52 | Poor |
| Nov | 74 | Unhealthy |
| Dec | 81 | Unhealthy |
Where is Ratnapura?
Ratnapura sits at 6.7°N, 80.4°E, 73 m above sea level, in Sri Lanka. The nearest listed city is Hatton, 31 km away.
Topography around Ratnapura
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ratnapura.
Within 3 km, the terrain around Ratnapura has significant variations in elevation — a maximum elevation change of 364 m around an average of 79 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,947 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,500 m.
The land around Ratnapura is covered by trees (93%) within 3 km, trees (98%) within 16 km, and trees (79%) 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 Ratnapura (6.6858°, 80.4036°, elevation 73 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).