Costa Rica weather in August
In August, Costa Rica sees average daytime highs of 30°C and overnight lows near 18°C, with 17 mm of rain across 2.5 wet days and about 11.4 hours of daylight. It is the 3rd-warmest and 11th-wettest month of the year here.
Highs climb over the month, from about 29°C in the first days to 31°C by the end. The sky is clear or mostly clear about 67% of the time in August, and the air most often feels dry.
Daylight stretches from about 11 h 12 min at the start of August to 11 h 36 min by month's end. Set against the rest of the year, August is Costa Rica's 2nd-clearest and 1st-windiest month. For the whole year in context, see Costa Rica's year-round climate.
- Daytime high
- 30°
- 3rd warmest
- Overnight low
- 18°
- 4th coldest
- Rainfall
- 17 mm
- 2.5 wet days
- Daylight
- 11 h 24 min
- 6:56 AM – 6:18 PM
- Cloud cover
- 32%
- 2nd clearest
- Wind
- 10 km/h
- 1st windiest
- Solar energy
- 5.14 kWh/m²
- Travel score
- 6.0
- out of 10
Temperature in August
Highs climb over the month, from about 29°C in the first days to 31°C by the end.
A typical August day in Costa Rica reaches about 30°C in the afternoon and slips back to 18°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 33°C. Set against its neighbours, August runs about 2°C warmer than July and about 1°C cooler than September.
| 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) | 29 | 29 | 29 | 30 | 30 | 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 |
| Avg low (°C) | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 29 | 17 |
| 2 | 29 | 17 |
| 3 | 29 | 17 |
| 4 | 30 | 17 |
| 5 | 30 | 17 |
| 6 | 30 | 17 |
| 7 | 30 | 17 |
| 8 | 30 | 17 |
| 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 | 31 | 18 |
| 19 | 31 | 18 |
| 20 | 31 | 18 |
| 21 | 31 | 18 |
| 22 | 31 | 18 |
| 23 | 31 | 19 |
| 24 | 31 | 19 |
| 25 | 31 | 19 |
| 26 | 31 | 19 |
| 27 | 31 | 19 |
| 28 | 31 | 19 |
| 29 | 31 | 19 |
| 30 | 31 | 19 |
| 31 | 31 | 19 |
How August really feels in Costa Rica
Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Costa Rica weather by month
How August compares with the rest of the year at a glance. August is the 3rd-warmest and 11th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 21° | 256 | 26.2 | 13 | 3.3 |
| Feb | 29° / 21° | 215 | 23.6 | 12.6 | 3.3 |
| Mar | 30° / 21° | 181 | 23.8 | 12.1 | 3.6 |
| Apr | 29° / 20° | 81 | 12.4 | 11.6 | 5.0 |
| May | 28° / 18° | 39 | 5.7 | 11.1 | 7.0 |
| Jun | 28° / 17° | 18 | 2.4 | 10.9 | 7.9 |
| Jul | 28° / 16° | 11 | 1.4 | 11 | 7.6 |
| Aug | 30° / 18° | 17 | 2.5 | 11.4 | 6.0 |
| Sep | 31° / 20° | 67 | 8.7 | 11.9 | 4.5 |
| Oct | 31° / 21° | 129 | 18.5 | 12.4 | 3.7 |
| Nov | 30° / 21° | 175 | 22.2 | 12.9 | 3.5 |
| Dec | 29° / 21° | 217 | 25.6 | 13.1 | 3.4 |
Cloud cover in August
The sky is clear or mostly clear about 67% of the time in August.
Beyond those clear spells, partly cloudy skies cover about 14% of August, with mostly cloudy or overcast conditions the remaining 19%.
| 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 (%) | 81 | 81 | 80 | 80 | 81 | 80 | 81 | 81 | 81 | 81 | 81 | 82 | 82 | 82 | 83 | 83 | 83 | 83 | 83 | 82 | 82 | 82 | 81 | 81 | 80 | 80 | 79 | 79 | 79 | 79 | 78 |
| Cloudier (%) | 19 | 19 | 20 | 20 | 19 | 20 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 19 | 19 | 20 | 20 | 21 | 21 | 21 | 21 | 22 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 81 | 19 |
| 2 | 81 | 19 |
| 3 | 80 | 20 |
| 4 | 80 | 20 |
| 5 | 81 | 19 |
| 6 | 80 | 20 |
| 7 | 81 | 19 |
| 8 | 81 | 19 |
| 9 | 81 | 19 |
| 10 | 81 | 19 |
| 11 | 81 | 19 |
| 12 | 82 | 18 |
| 13 | 82 | 18 |
| 14 | 82 | 18 |
| 15 | 83 | 17 |
| 16 | 83 | 17 |
| 17 | 83 | 17 |
| 18 | 83 | 17 |
| 19 | 83 | 17 |
| 20 | 82 | 18 |
| 21 | 82 | 18 |
| 22 | 82 | 18 |
| 23 | 81 | 19 |
| 24 | 81 | 19 |
| 25 | 80 | 20 |
| 26 | 80 | 20 |
| 27 | 79 | 21 |
| 28 | 79 | 21 |
| 29 | 79 | 21 |
| 30 | 79 | 21 |
| 31 | 78 | 22 |
Chance of precipitation in August
Costa Rica gets around 17 mm of rain over 2.5 wet days in August. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 8% and peaks near 17% 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 (%) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 10 | 10 | 11 | 12 | 13 | 13 | 14 | 15 | 16 | 17 |
| Rain chance (%) | |
|---|---|
| 1 | 5 |
| 2 | 5 |
| 3 | 5 |
| 4 | 5 |
| 5 | 5 |
| 6 | 5 |
| 7 | 5 |
| 8 | 5 |
| 9 | 5 |
| 10 | 5 |
| 11 | 6 |
| 12 | 6 |
| 13 | 6 |
| 14 | 6 |
| 15 | 7 |
| 16 | 7 |
| 17 | 7 |
| 18 | 8 |
| 19 | 8 |
| 20 | 8 |
| 21 | 9 |
| 22 | 10 |
| 23 | 10 |
| 24 | 11 |
| 25 | 12 |
| 26 | 13 |
| 27 | 13 |
| 28 | 14 |
| 29 | 15 |
| 30 | 16 |
| 31 | 17 |
Humidity in August
Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the dry band about 67% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 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 (%) | 73 | 73 | 73 | 73 | 72 | 71 | 71 | 71 | 71 | 71 | 71 | 70 | 69 | 69 | 69 | 68 | 68 | 68 | 68 | 67 | 67 | 66 | 65 | 64 | 63 | 63 | 61 | 60 | 59 | 59 | 58 |
| Comfortable (%) | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 |
| Humid (%) | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 12 | 12 | 13 | 13 | 14 | 14 | 15 |
| Muggy (%) | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 4 | 4 | 5 | 5 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 73 | 19 | 8 | 0 |
| 2 | 73 | 19 | 8 | 0 |
| 3 | 73 | 19 | 8 | 0 |
| 4 | 73 | 19 | 8 | 0 |
| 5 | 72 | 19 | 8 | 1 |
| 6 | 71 | 19 | 9 | 1 |
| 7 | 71 | 19 | 9 | 1 |
| 8 | 71 | 19 | 9 | 1 |
| 9 | 71 | 19 | 9 | 1 |
| 10 | 71 | 19 | 9 | 1 |
| 11 | 71 | 19 | 9 | 1 |
| 12 | 70 | 20 | 9 | 1 |
| 13 | 69 | 20 | 10 | 1 |
| 14 | 69 | 20 | 10 | 1 |
| 15 | 69 | 20 | 10 | 1 |
| 16 | 68 | 21 | 10 | 1 |
| 17 | 68 | 21 | 10 | 1 |
| 18 | 68 | 21 | 10 | 1 |
| 19 | 68 | 21 | 10 | 1 |
| 20 | 67 | 22 | 10 | 1 |
| 21 | 67 | 22 | 10 | 1 |
| 22 | 66 | 23 | 10 | 1 |
| 23 | 65 | 23 | 11 | 1 |
| 24 | 64 | 23 | 11 | 2 |
| 25 | 63 | 23 | 12 | 2 |
| 26 | 63 | 23 | 12 | 2 |
| 27 | 61 | 23 | 13 | 3 |
| 28 | 60 | 23 | 13 | 4 |
| 29 | 59 | 23 | 14 | 4 |
| 30 | 59 | 22 | 14 | 5 |
| 31 | 58 | 22 | 15 | 5 |
Wind in August
Winds average 10 km/h in August, the windiest month of the year.
Across August, daily wind ranges from about 10 km/h on the calmest days to 10 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) | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| 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 | 10 | calm |
| 2 | 10 | calm |
| 3 | 10 | calm |
| 4 | 10 | calm |
| 5 | 10 | calm |
| 6 | 10 | calm |
| 7 | 10 | calm |
| 8 | 10 | calm |
| 9 | 10 | calm |
| 10 | 10 | calm |
| 11 | 10 | calm |
| 12 | 10 | calm |
| 13 | 10 | calm |
| 14 | 10 | calm |
| 15 | 10 | calm |
| 16 | 10 | calm |
| 17 | 10 | calm |
| 18 | 10 | calm |
| 19 | 10 | calm |
| 20 | 10 | calm |
| 21 | 10 | calm |
| 22 | 10 | calm |
| 23 | 10 | calm |
| 24 | 10 | calm |
| 25 | 10 | calm |
| 26 | 10 | calm |
| 27 | 10 | calm |
| 28 | 10 | calm |
| 29 | 10 | calm |
| 30 | 10 | calm |
| 31 | 10 | calm |
Sunrise & sunset in August
Daylight runs from about 11 h 12 min at the start of August to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 24 minutes over August. Sunrise moves from 7:04 AM to 6:44 AM, and sunset from 6:13 PM to 6:21 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) | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.2 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.3 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.6 | 11.6 | 11.6 | 11.6 |
| Sunrise (AM) | 7:04 | 7:03 | 7:03 | 7:03 | 7:02 | 7:02 | 7:01 | 7:00 | 7:00 | 6:59 | 6:59 | 6:58 | 6:58 | 6:57 | 6:56 | 6:56 | 6:55 | 6:54 | 6:54 | 6:53 | 6:52 | 6:51 | 6:51 | 6:50 | 6:49 | 6:48 | 6:47 | 6:47 | 6:46 | 6:45 | 6:44 |
| Sunset (PM) | 6:13 | 6:14 | 6:14 | 6:14 | 6:14 | 6:15 | 6:15 | 6:15 | 6:16 | 6:16 | 6:16 | 6:17 | 6:17 | 6:17 | 6:17 | 6:18 | 6:18 | 6:18 | 6:18 | 6:19 | 6:19 | 6:19 | 6:19 | 6:20 | 6:20 | 6:20 | 6:20 | 6:20 | 6:21 | 6:21 | 6:21 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.2 | 7:04 | 6:13 |
| 2 | 11.2 | 7:03 | 6:14 |
| 3 | 11.2 | 7:03 | 6:14 |
| 4 | 11.2 | 7:03 | 6:14 |
| 5 | 11.2 | 7:02 | 6:14 |
| 6 | 11.2 | 7:02 | 6:15 |
| 7 | 11.2 | 7:01 | 6:15 |
| 8 | 11.2 | 7:00 | 6:15 |
| 9 | 11.3 | 7:00 | 6:16 |
| 10 | 11.3 | 6:59 | 6:16 |
| 11 | 11.3 | 6:59 | 6:16 |
| 12 | 11.3 | 6:58 | 6:17 |
| 13 | 11.3 | 6:58 | 6:17 |
| 14 | 11.3 | 6:57 | 6:17 |
| 15 | 11.4 | 6:56 | 6:17 |
| 16 | 11.4 | 6:56 | 6:18 |
| 17 | 11.4 | 6:55 | 6:18 |
| 18 | 11.4 | 6:54 | 6:18 |
| 19 | 11.4 | 6:54 | 6:18 |
| 20 | 11.4 | 6:53 | 6:19 |
| 21 | 11.4 | 6:52 | 6:19 |
| 22 | 11.5 | 6:51 | 6:19 |
| 23 | 11.5 | 6:51 | 6:19 |
| 24 | 11.5 | 6:50 | 6:20 |
| 25 | 11.5 | 6:49 | 6:20 |
| 26 | 11.5 | 6:48 | 6:20 |
| 27 | 11.5 | 6:47 | 6:20 |
| 28 | 11.6 | 6:47 | 6:20 |
| 29 | 11.6 | 6:46 | 6:21 |
| 30 | 11.6 | 6:45 | 6:21 |
| 31 | 11.6 | 6:44 | 6:21 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 5.14 kWh/m².
For context, solar energy here swings from a low near 4.17 kWh/m² to a high of 5.99 kWh/m² in October across the year — August's 5.14 kWh/m² falls in the middle.
| 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) | 4.8 | 4.8 | 4.8 | 4.9 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.0 | 5.1 | 5.1 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.8 | Bright |
| 2 | 4.8 | Bright |
| 3 | 4.8 | Bright |
| 4 | 4.9 | Bright |
| 5 | 4.9 | Bright |
| 6 | 4.9 | Bright |
| 7 | 5.0 | Bright |
| 8 | 5.0 | Bright |
| 9 | 5.0 | Bright |
| 10 | 5.0 | Bright |
| 11 | 5.1 | Bright |
| 12 | 5.1 | Bright |
| 13 | 5.1 | Bright |
| 14 | 5.1 | Bright |
| 15 | 5.2 | Bright |
| 16 | 5.2 | Bright |
| 17 | 5.2 | Bright |
| 18 | 5.2 | Bright |
| 19 | 5.2 | Bright |
| 20 | 5.2 | Bright |
| 21 | 5.3 | Bright |
| 22 | 5.3 | Bright |
| 23 | 5.3 | Bright |
| 24 | 5.3 | Bright |
| 25 | 5.3 | Bright |
| 26 | 5.3 | Bright |
| 27 | 5.4 | Bright |
| 28 | 5.4 | Bright |
| 29 | 5.4 | Bright |
| 30 | 5.4 | Bright |
| 31 | 5.4 | Bright |
Hazard calendar for Costa Rica
None of Costa Rica's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Costa Rica's monsoon runs October–March, when most of the year's rain falls.
Is August a good time to visit Costa Rica?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is a reasonable time to visit Costa Rica for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Costa Rica in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, Costa Rica sees daytime highs around 30°C and nights near 18°C. Pack light clothes. Worth having: sun protection.
UV index in Costa Rica in August
Clear-sky midday UV in August peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Costa Rica peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 7 (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) | 15 | 15 | 14 | 11 | 8 | 7 | 8 | 9 | 9 | 10 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 15 | Extreme |
| Mar | 14 | Extreme |
| Apr | 11 | Extreme |
| May | 8 | Very high |
| Jun | 7 | Very high |
| Jul | 8 | Very high |
| Aug | 9 | Very high |
| Sep | 9 | Very high |
| Oct | 10 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Air quality in Costa Rica in August
Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.
Air quality in Costa Rica is worst in September — around 24 µg/m³ PM2.5 (moderate), about 5.2× the cleanest month (June, 5 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) | 7 | 7 | 6 | 5 | 5 | 5 | 8 | 10 | 24 | 12 | 6 | 6 |
| Level | Good | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 7 | Good |
| Mar | 6 | Good |
| Apr | 5 | Good |
| May | 5 | Good |
| Jun | 5 | Good |
| Jul | 8 | Good |
| Aug | 10 | Good |
| Sep | 24 | Moderate |
| Oct | 12 | Moderate |
| Nov | 6 | Good |
| Dec | 6 | Good |
Where is Costa Rica?
Costa Rica sits at 18.5°S, 53.1°W, 646 m above sea level, in Brazil. The nearest listed city is Chapadão do Sul, 60 km away.
Topography around Costa Rica
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Costa Rica.
Within 3 km, the terrain around Costa Rica has only modest variations in elevation — a maximum elevation change of 160 m around an average of 655 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 307 m; within 80 km, large variations in elevation — a maximum elevation change of 616 m.
The land around Costa Rica is covered by grassland (39%) and trees (22%) within 3 km, cropland (41%), grassland (28%) and trees (27%) within 16 km, and cropland (42%), grassland (31%) and trees (23%) within 80 km.
Brazil travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / N
- 127 / 220 V · 60 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $10,713
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 89%
- of population, 2024
- Homicide rate
- 19.3
- per 100k, 2023
- Road deaths
- 16
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 482
- 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 Costa Rica (-18.5439°, -53.1292°, elevation 646 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. 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).