Chalchuapa weather in March
In March, Chalchuapa sees average daytime highs of 30°C and overnight lows near 18°C, with 13 mm of rain across 3.9 wet days and about 11.9 hours of daylight. It is the 2nd-warmest and 9th-wettest month of the year here.
Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 61% of the time in March, and the air most often feels humid.
Daylight stretches from about 11 h 42 min at the start of March to 12 h 06 min by month's end. Set against the rest of the year, March is Chalchuapa's 4th-clearest and 5th-windiest month. For the whole year in context, see Chalchuapa's year-round climate.
- Daytime high
- 30°
- 2nd warmest
- Overnight low
- 18°
- 4th coldest
- Rainfall
- 13 mm
- 3.9 wet days
- Daylight
- 11 h 54 min
- 6:11 AM – 6:05 PM
- Cloud cover
- 34%
- 4th clearest
- Wind
- 8 km/h
- 5th windiest
- Solar energy
- 6.42 kWh/m²
- Travel score
- 5.9
- out of 10
Chalchuapa is district in Western Santa Ana, El Salvador.
- Density
- 195/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 30°C through the month.
A typical March day in Chalchuapa reaches about 30°C in the afternoon and slips back to 18°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, March runs about 1°C warmer than 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) | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 31 |
| Avg low (°C) | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 19 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 30 | 17 |
| 2 | 30 | 17 |
| 3 | 30 | 18 |
| 4 | 30 | 18 |
| 5 | 30 | 18 |
| 6 | 30 | 18 |
| 7 | 30 | 18 |
| 8 | 30 | 18 |
| 9 | 30 | 18 |
| 10 | 30 | 18 |
| 11 | 30 | 18 |
| 12 | 30 | 18 |
| 13 | 30 | 18 |
| 14 | 30 | 18 |
| 15 | 30 | 18 |
| 16 | 30 | 18 |
| 17 | 30 | 18 |
| 18 | 30 | 18 |
| 19 | 30 | 18 |
| 20 | 30 | 18 |
| 21 | 30 | 18 |
| 22 | 30 | 18 |
| 23 | 30 | 18 |
| 24 | 30 | 18 |
| 25 | 31 | 18 |
| 26 | 31 | 18 |
| 27 | 31 | 18 |
| 28 | 31 | 18 |
| 29 | 31 | 18 |
| 30 | 31 | 19 |
| 31 | 31 | 19 |
Chalchuapa weather by month
How March compares with the rest of the year at a glance. March is the 2nd-warmest and 9th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 17° | 3 | 1.1 | 11.3 | 7.6 |
| Feb | 30° / 17° | 3 | 1.2 | 11.5 | 6.8 |
| Mar | 30° / 18° | 13 | 3.9 | 11.9 | 5.9 |
| Apr | 30° / 19° | 54 | 11.1 | 12.3 | 4.8 |
| May | 29° / 20° | 210 | 23.3 | 12.6 | 3.7 |
| Jun | 28° / 20° | 286 | 25.2 | 12.8 | 3.6 |
| Jul | 29° / 20° | 142 | 16.8 | 12.7 | 4.4 |
| Aug | 29° / 20° | 203 | 21.7 | 12.5 | 3.9 |
| Sep | 28° / 19° | 321 | 26.9 | 12.1 | 3.5 |
| Oct | 28° / 19° | 231 | 20.6 | 11.7 | 4.7 |
| Nov | 28° / 18° | 37 | 5.8 | 11.4 | 6.7 |
| Dec | 28° / 17° | 9 | 2 | 11.2 | 7.4 |
Cloud cover in March
The sky is clear or mostly clear about 61% of the time in March.
Beyond those clear spells, partly cloudy skies cover about 26% of March, with mostly cloudy or overcast conditions the remaining 14%. 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 (%) | 92 | 91 | 91 | 91 | 91 | 89 | 89 | 89 | 88 | 88 | 87 | 87 | 86 | 86 | 86 | 86 | 85 | 85 | 85 | 85 | 84 | 84 | 84 | 84 | 84 | 84 | 84 | 84 | 83 | 83 | 82 |
| Cloudier (%) | 8 | 9 | 9 | 9 | 9 | 11 | 11 | 11 | 12 | 12 | 13 | 13 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 18 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 92 | 8 |
| 2 | 91 | 9 |
| 3 | 91 | 9 |
| 4 | 91 | 9 |
| 5 | 91 | 9 |
| 6 | 89 | 11 |
| 7 | 89 | 11 |
| 8 | 89 | 11 |
| 9 | 88 | 12 |
| 10 | 88 | 12 |
| 11 | 87 | 13 |
| 12 | 87 | 13 |
| 13 | 86 | 14 |
| 14 | 86 | 14 |
| 15 | 86 | 14 |
| 16 | 86 | 14 |
| 17 | 85 | 15 |
| 18 | 85 | 15 |
| 19 | 85 | 15 |
| 20 | 85 | 15 |
| 21 | 84 | 16 |
| 22 | 84 | 16 |
| 23 | 84 | 16 |
| 24 | 84 | 16 |
| 25 | 84 | 16 |
| 26 | 84 | 16 |
| 27 | 84 | 16 |
| 28 | 84 | 16 |
| 29 | 83 | 17 |
| 30 | 83 | 17 |
| 31 | 82 | 18 |
Chance of precipitation in March
Chalchuapa gets around 13 mm of rain over 3.9 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 13% and peaks near 23% 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 (%) | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 11 | 11 | 12 | 12 | 13 | 13 | 14 | 14 | 15 | 16 | 16 | 17 | 18 | 19 | 20 | 21 | 21 | 22 | 23 |
| Rain chance (%) | |
|---|---|
| 1 | 7 |
| 2 | 7 |
| 3 | 7 |
| 4 | 7 |
| 5 | 8 |
| 6 | 8 |
| 7 | 8 |
| 8 | 9 |
| 9 | 9 |
| 10 | 9 |
| 11 | 10 |
| 12 | 10 |
| 13 | 11 |
| 14 | 11 |
| 15 | 12 |
| 16 | 12 |
| 17 | 13 |
| 18 | 13 |
| 19 | 14 |
| 20 | 14 |
| 21 | 15 |
| 22 | 16 |
| 23 | 16 |
| 24 | 17 |
| 25 | 18 |
| 26 | 19 |
| 27 | 20 |
| 28 | 21 |
| 29 | 21 |
| 30 | 22 |
| 31 | 23 |
Humidity in March
Most of March feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, March lands in the humid band about 42% of days. Sticky, muggy-or-worse air turns up on roughly 11% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 16 | 16 | 16 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 9 | 9 | 8 | 8 | 7 | 6 |
| Comfortable (%) | 41 | 41 | 41 | 41 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 39 | 39 | 38 | 38 | 37 | 36 | 35 | 33 | 32 | 31 | 30 | 29 | 28 | 26 | 25 | 24 | 23 | 22 | 21 |
| Humid (%) | 38 | 38 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 38 | 38 | 39 | 39 | 39 | 40 | 41 | 42 | 42 | 43 | 44 | 45 | 46 | 46 | 47 | 48 | 48 | 49 | 49 | 50 | 50 |
| Muggy (%) | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 9 | 9 | 10 | 10 | 11 | 11 | 12 | 12 | 13 | 14 | 14 | 15 | 16 | 18 | 19 | 20 | 22 | 23 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 16 | 41 | 38 | 5 |
| 2 | 16 | 41 | 38 | 5 |
| 3 | 16 | 41 | 37 | 5 |
| 4 | 17 | 41 | 37 | 6 |
| 5 | 17 | 40 | 37 | 6 |
| 6 | 16 | 40 | 37 | 7 |
| 7 | 16 | 40 | 37 | 7 |
| 8 | 16 | 40 | 37 | 7 |
| 9 | 16 | 40 | 37 | 7 |
| 10 | 15 | 40 | 37 | 8 |
| 11 | 15 | 40 | 38 | 8 |
| 12 | 14 | 40 | 38 | 8 |
| 13 | 14 | 39 | 39 | 8 |
| 14 | 13 | 39 | 39 | 9 |
| 15 | 13 | 38 | 39 | 9 |
| 16 | 13 | 38 | 40 | 10 |
| 17 | 12 | 37 | 41 | 10 |
| 18 | 12 | 36 | 42 | 11 |
| 19 | 12 | 35 | 42 | 11 |
| 20 | 11 | 33 | 43 | 12 |
| 21 | 11 | 32 | 44 | 12 |
| 22 | 11 | 31 | 45 | 13 |
| 23 | 11 | 30 | 46 | 14 |
| 24 | 10 | 29 | 46 | 14 |
| 25 | 10 | 28 | 47 | 15 |
| 26 | 9 | 26 | 48 | 16 |
| 27 | 9 | 25 | 48 | 18 |
| 28 | 8 | 24 | 49 | 19 |
| 29 | 8 | 23 | 49 | 20 |
| 30 | 7 | 22 | 50 | 22 |
| 31 | 6 | 21 | 50 | 23 |
Wind in March
Winds average 8 km/h in March.
Across March, daily wind ranges from about 7 km/h on the calmest days to 8 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) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| 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 | 8 | calm |
| 2 | 8 | calm |
| 3 | 8 | calm |
| 4 | 8 | calm |
| 5 | 8 | calm |
| 6 | 8 | calm |
| 7 | 8 | calm |
| 8 | 8 | calm |
| 9 | 8 | calm |
| 10 | 8 | calm |
| 11 | 8 | calm |
| 12 | 8 | calm |
| 13 | 8 | calm |
| 14 | 8 | calm |
| 15 | 8 | calm |
| 16 | 8 | calm |
| 17 | 8 | calm |
| 18 | 8 | calm |
| 19 | 8 | calm |
| 20 | 8 | calm |
| 21 | 8 | calm |
| 22 | 8 | calm |
| 23 | 8 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
| 31 | 7 | calm |
Sunrise & sunset in March
Daylight runs from about 11 h 42 min at the start of March to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 24 minutes over March. Sunrise moves from 6:21 AM to 6:01 AM, and sunset from 6:03 PM to 6:07 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) | 11.7 | 11.7 | 11.7 | 11.7 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 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 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 |
| Sunrise (AM) | 6:21 | 6:20 | 6:20 | 6:19 | 6:18 | 6:18 | 6:17 | 6:17 | 6:16 | 6:15 | 6:15 | 6:14 | 6:13 | 6:13 | 6:12 | 6:11 | 6:11 | 6:10 | 6:09 | 6:08 | 6:08 | 6:07 | 6:06 | 6:06 | 6:05 | 6:04 | 6:03 | 6:03 | 6:02 | 6:01 | 6:01 |
| Sunset (PM) | 6:03 | 6:03 | 6:04 | 6:04 | 6:04 | 6:04 | 6:04 | 6:04 | 6:05 | 6:05 | 6:05 | 6:05 | 6:05 | 6:05 | 6:05 | 6:05 | 6:06 | 6:06 | 6:06 | 6:06 | 6:06 | 6:06 | 6:06 | 6:06 | 6:06 | 6:06 | 6:06 | 6:07 | 6:07 | 6:07 | 6:07 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.7 | 6:21 | 6:03 |
| 2 | 11.7 | 6:20 | 6:03 |
| 3 | 11.7 | 6:20 | 6:04 |
| 4 | 11.7 | 6:19 | 6:04 |
| 5 | 11.8 | 6:18 | 6:04 |
| 6 | 11.8 | 6:18 | 6:04 |
| 7 | 11.8 | 6:17 | 6:04 |
| 8 | 11.8 | 6:17 | 6:04 |
| 9 | 11.8 | 6:16 | 6:05 |
| 10 | 11.8 | 6:15 | 6:05 |
| 11 | 11.8 | 6:15 | 6:05 |
| 12 | 11.8 | 6:14 | 6:05 |
| 13 | 11.9 | 6:13 | 6:05 |
| 14 | 11.9 | 6:13 | 6:05 |
| 15 | 11.9 | 6:12 | 6:05 |
| 16 | 11.9 | 6:11 | 6:05 |
| 17 | 11.9 | 6:11 | 6:06 |
| 18 | 11.9 | 6:10 | 6:06 |
| 19 | 11.9 | 6:09 | 6:06 |
| 20 | 12.0 | 6:08 | 6:06 |
| 21 | 12.0 | 6:08 | 6:06 |
| 22 | 12.0 | 6:07 | 6:06 |
| 23 | 12.0 | 6:06 | 6:06 |
| 24 | 12.0 | 6:06 | 6:06 |
| 25 | 12.0 | 6:05 | 6:06 |
| 26 | 12.0 | 6:04 | 6:06 |
| 27 | 12.1 | 6:03 | 6:06 |
| 28 | 12.1 | 6:03 | 6:07 |
| 29 | 12.1 | 6:02 | 6:07 |
| 30 | 12.1 | 6:01 | 6:07 |
| 31 | 12.1 | 6:01 | 6:07 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 6.42 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 4.83 kWh/m² to a high of 6.42 kWh/m² in March across the year — March's 6.42 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) | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | 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 | 6.3 | Intense |
| 2 | 6.3 | Intense |
| 3 | 6.3 | Intense |
| 4 | 6.3 | Intense |
| 5 | 6.3 | Intense |
| 6 | 6.3 | Intense |
| 7 | 6.3 | Intense |
| 8 | 6.4 | Intense |
| 9 | 6.4 | Intense |
| 10 | 6.4 | Intense |
| 11 | 6.4 | Intense |
| 12 | 6.4 | Intense |
| 13 | 6.4 | Intense |
| 14 | 6.4 | Intense |
| 15 | 6.4 | Intense |
| 16 | 6.4 | Intense |
| 17 | 6.4 | Intense |
| 18 | 6.4 | 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 | 6.4 | Intense |
| 26 | 6.4 | Intense |
| 27 | 6.4 | Intense |
| 28 | 6.4 | Intense |
| 29 | 6.4 | Intense |
| 30 | 6.4 | Intense |
| 31 | 6.4 | Intense |
Hazard calendar for Chalchuapa
None of Chalchuapa's seasonal hazards are active in March. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Chalchuapa sits in the Atlantic hurricane belt; the season peaks August–October.
Chalchuapa's monsoon runs August–October, when most of the year's rain falls.
Is March a good time to visit Chalchuapa?
Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
March is a reasonable time to visit Chalchuapa for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Chalchuapa in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, Chalchuapa sees daytime highs around 30°C and nights near 18°C. Pack light clothes and sun protection. About 4 days see rain.
Sea temperature near Chalchuapa 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 45 km away) is warmest in August at about 30°C and coldest in January 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 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Tropical |
| Feb | 28 | Tropical |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 30 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in Chalchuapa 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 Chalchuapa peaks around April 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 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 | 14 | 12 | 13 | 13 | 12 | 12 | 11 | 9 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 13 | Extreme |
| Mar | 13 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 13 | Extreme |
| Jul | 13 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 9 | Very high |
Air quality in Chalchuapa 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 Chalchuapa is worst in April — around 34 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (January, 16 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) | 16 | 17 | 21 | 34 | 32 | 23 | 23 | 21 | 21 | 21 | 20 | 17 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 16 | Moderate |
| Feb | 17 | Moderate |
| Mar | 21 | Moderate |
| Apr | 34 | Moderate |
| May | 32 | Moderate |
| Jun | 23 | Moderate |
| Jul | 23 | Moderate |
| Aug | 21 | Moderate |
| Sep | 21 | Moderate |
| Oct | 21 | Moderate |
| Nov | 20 | Moderate |
| Dec | 17 | Moderate |
Where is Chalchuapa?
Chalchuapa sits at 14.0°N, 89.7°W, 710 m above sea level, in El Salvador. The nearest listed city is Santa Ana, 13 km away.
Topography around Chalchuapa
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Chalchuapa.
Within 3 km, the terrain around Chalchuapa has significant variations in elevation — a maximum elevation change of 256 m around an average of 721 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,953 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,703 m.
The land around Chalchuapa is covered by trees (44%) and grassland (20%) within 3 km, trees (65%) within 16 km, and trees (48%) and grassland (23%) within 80 km.
El Salvador travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B
- 115 V · 60 Hz
- Prices
- ≈ 41% of US
- price level, 2025
- GDP per capita
- $5,767
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Homicide rate
- 7.9
- per 100k, 2022
- Road deaths
- 20.9
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Moderate
- EF EPI 523
- 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 Chalchuapa (13.9867°, -89.6811°, elevation 710 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).