San Isidro weather in March
In March, San Isidro sees average daytime highs of 25°C and overnight lows near 21°C, with 138 mm of rain across 25.6 wet days and about 11.9 hours of daylight. It is the 1st-warmest and 12th-wettest month of the year here.
Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 37% of the time in March, and the air most often feels muggy.
Daylight stretches from about 11 h 48 min at the start of March to 12 h 06 min by month's end. Set against the rest of the year, March is San Isidro's 2nd-clearest and 9th-windiest month. For the whole year in context, see San Isidro's year-round climate.
- Daytime high
- 25°
- 1st warmest
- Overnight low
- 21°
- 6th coldest
- Rainfall
- 138 mm
- 25.6 wet days
- Daylight
- 11 h 54 min
- 5:46 AM – 5:43 PM
- Cloud cover
- 52%
- 2nd clearest
- Wind
- 5 km/h
- 9th windiest
- Solar energy
- 6.24 kWh/m²
- Travel score
- 4.7
- out of 10
San Isidro is district in Pérez Zeledón canton, San José province, Costa Rica.
- Density
- 182/km²
- people per km²
- Founded
- 1892
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in March
Day-to-day highs hold fairly steady near 25°C through the month.
A typical March day in San Isidro reaches about 25°C in the afternoon and slips back to 21°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 26°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) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg low (°C) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 25 | 20 |
| 2 | 25 | 20 |
| 3 | 25 | 20 |
| 4 | 25 | 20 |
| 5 | 25 | 20 |
| 6 | 25 | 20 |
| 7 | 25 | 20 |
| 8 | 25 | 20 |
| 9 | 25 | 21 |
| 10 | 25 | 21 |
| 11 | 25 | 21 |
| 12 | 25 | 21 |
| 13 | 25 | 21 |
| 14 | 25 | 21 |
| 15 | 25 | 21 |
| 16 | 25 | 21 |
| 17 | 25 | 21 |
| 18 | 25 | 21 |
| 19 | 25 | 21 |
| 20 | 25 | 21 |
| 21 | 25 | 21 |
| 22 | 25 | 21 |
| 23 | 25 | 21 |
| 24 | 25 | 21 |
| 25 | 25 | 21 |
| 26 | 25 | 21 |
| 27 | 25 | 21 |
| 28 | 25 | 21 |
| 29 | 25 | 21 |
| 30 | 25 | 21 |
| 31 | 25 | 21 |
San Isidro weather by month
How March compares with the rest of the year at a glance. March is the 1st-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 | 24° / 20° | 210 | 25.2 | 11.5 | 4.8 |
| Feb | 24° / 20° | 140 | 21.6 | 11.7 | 5.1 |
| Mar | 25° / 21° | 138 | 25.6 | 11.9 | 4.7 |
| Apr | 25° / 21° | 330 | 28.6 | 12.2 | 3.8 |
| May | 24° / 21° | 730 | 30.8 | 12.4 | 3.4 |
| Jun | 24° / 21° | 709 | 29.9 | 12.5 | 3.4 |
| Jul | 24° / 21° | 833 | 31 | 12.5 | 3.4 |
| Aug | 24° / 21° | 933 | 31 | 12.3 | 3.4 |
| Sep | 24° / 21° | 808 | 30 | 12.1 | 3.4 |
| Oct | 24° / 20° | 952 | 30.8 | 11.8 | 3.4 |
| Nov | 24° / 20° | 924 | 29.9 | 11.6 | 3.5 |
| Dec | 24° / 20° | 413 | 28.8 | 11.5 | 4.1 |
Cloud cover in March
The sky is clear or mostly clear about 37% of the time in March.
Beyond those clear spells, partly cloudy skies cover about 28% of March, with mostly cloudy or overcast conditions the remaining 35%. 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 (%) | 74 | 74 | 74 | 74 | 74 | 74 | 73 | 73 | 73 | 71 | 71 | 70 | 68 | 67 | 67 | 65 | 65 | 63 | 63 | 61 | 60 | 60 | 58 | 58 | 57 | 57 | 56 | 56 | 55 | 55 | 53 |
| Cloudier (%) | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 29 | 29 | 30 | 32 | 33 | 33 | 35 | 35 | 37 | 37 | 39 | 40 | 40 | 42 | 42 | 43 | 43 | 44 | 44 | 45 | 45 | 47 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 74 | 26 |
| 2 | 74 | 26 |
| 3 | 74 | 26 |
| 4 | 74 | 26 |
| 5 | 74 | 26 |
| 6 | 74 | 26 |
| 7 | 73 | 27 |
| 8 | 73 | 27 |
| 9 | 73 | 27 |
| 10 | 71 | 29 |
| 11 | 71 | 29 |
| 12 | 70 | 30 |
| 13 | 68 | 32 |
| 14 | 67 | 33 |
| 15 | 67 | 33 |
| 16 | 65 | 35 |
| 17 | 65 | 35 |
| 18 | 63 | 37 |
| 19 | 63 | 37 |
| 20 | 61 | 39 |
| 21 | 60 | 40 |
| 22 | 60 | 40 |
| 23 | 58 | 42 |
| 24 | 58 | 42 |
| 25 | 57 | 43 |
| 26 | 57 | 43 |
| 27 | 56 | 44 |
| 28 | 56 | 44 |
| 29 | 55 | 45 |
| 30 | 55 | 45 |
| 31 | 53 | 47 |
Chance of precipitation in March
San Isidro gets around 138 mm of rain over 25.6 wet days in March, the driest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 83% and peaks near 91% 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 | 79 | 79 | 79 | 79 | 78 | 78 | 77 | 77 | 77 | 77 | 77 | 78 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 89 | 90 | 90 | 91 | 91 | 91 |
| Rain chance (%) | |
|---|---|
| 1 | 80 |
| 2 | 79 |
| 3 | 79 |
| 4 | 79 |
| 5 | 79 |
| 6 | 78 |
| 7 | 78 |
| 8 | 77 |
| 9 | 77 |
| 10 | 77 |
| 11 | 77 |
| 12 | 77 |
| 13 | 78 |
| 14 | 78 |
| 15 | 79 |
| 16 | 80 |
| 17 | 81 |
| 18 | 82 |
| 19 | 83 |
| 20 | 84 |
| 21 | 85 |
| 22 | 86 |
| 23 | 87 |
| 24 | 88 |
| 25 | 89 |
| 26 | 89 |
| 27 | 90 |
| 28 | 90 |
| 29 | 91 |
| 30 | 91 |
| 31 | 91 |
Humidity in March
Most of March feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, March lands in the muggy band about 83% of days. Sticky, muggy-or-worse air turns up on roughly 85% 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 (%) | 23 | 22 | 21 | 20 | 19 | 19 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 13 | 13 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 9 |
| Muggy (%) | 75 | 76 | 77 | 78 | 79 | 79 | 80 | 80 | 81 | 81 | 82 | 82 | 82 | 82 | 83 | 83 | 83 | 84 | 85 | 85 | 86 | 86 | 87 | 87 | 88 | 88 | 88 | 88 | 89 | 89 | 89 |
| Oppressive (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|
| 1 | 23 | 75 | 2 |
| 2 | 22 | 76 | 2 |
| 3 | 21 | 77 | 2 |
| 4 | 20 | 78 | 2 |
| 5 | 19 | 79 | 2 |
| 6 | 19 | 79 | 2 |
| 7 | 18 | 80 | 2 |
| 8 | 18 | 80 | 2 |
| 9 | 17 | 81 | 2 |
| 10 | 17 | 81 | 2 |
| 11 | 16 | 82 | 2 |
| 12 | 16 | 82 | 2 |
| 13 | 16 | 82 | 2 |
| 14 | 16 | 82 | 2 |
| 15 | 15 | 83 | 2 |
| 16 | 15 | 83 | 2 |
| 17 | 15 | 83 | 2 |
| 18 | 14 | 84 | 2 |
| 19 | 13 | 85 | 2 |
| 20 | 13 | 85 | 2 |
| 21 | 12 | 86 | 2 |
| 22 | 12 | 86 | 2 |
| 23 | 11 | 87 | 2 |
| 24 | 11 | 87 | 2 |
| 25 | 10 | 88 | 2 |
| 26 | 10 | 88 | 2 |
| 27 | 10 | 88 | 2 |
| 28 | 10 | 88 | 2 |
| 29 | 9 | 89 | 2 |
| 30 | 9 | 89 | 2 |
| 31 | 9 | 89 | 2 |
Wind in March
Winds average 5 km/h in March.
Across March, daily wind ranges from about 4 km/h on the calmest days to 5 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) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 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 | 5 | calm |
| 2 | 5 | calm |
| 3 | 5 | calm |
| 4 | 5 | calm |
| 5 | 5 | calm |
| 6 | 5 | calm |
| 7 | 5 | calm |
| 8 | 5 | calm |
| 9 | 5 | calm |
| 10 | 5 | calm |
| 11 | 5 | calm |
| 12 | 5 | calm |
| 13 | 5 | calm |
| 14 | 5 | calm |
| 15 | 5 | calm |
| 16 | 5 | calm |
| 17 | 5 | calm |
| 18 | 5 | calm |
| 19 | 5 | calm |
| 20 | 5 | 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 48 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 18 minutes over March. Sunrise moves from 5:54 AM to 5:38 AM, and sunset from 5:42 PM to 5:42 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) | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 11.9 | 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 | 12.1 | 12.1 | 12.1 |
| Sunrise (AM) | 5:54 | 5:53 | 5:53 | 5:53 | 5:52 | 5:52 | 5:51 | 5:51 | 5:50 | 5:50 | 5:49 | 5:49 | 5:48 | 5:47 | 5:47 | 5:46 | 5:46 | 5:45 | 5:45 | 5:44 | 5:44 | 5:43 | 5:42 | 5:42 | 5:41 | 5:41 | 5:40 | 5:39 | 5:39 | 5:38 | 5:38 |
| Sunset (PM) | 5:42 | 5:42 | 5:42 | 5:42 | 5:42 | 5:42 | 5:43 | 5:43 | 5:43 | 5:43 | 5:43 | 5:43 | 5:43 | 5:43 | 5:43 | 5:43 | 5:42 | 5:42 | 5:42 | 5:42 | 5:42 | 5:42 | 5:42 | 5:42 | 5:42 | 5:42 | 5:42 | 5:42 | 5:42 | 5:42 | 5:42 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.8 | 5:54 | 5:42 |
| 2 | 11.8 | 5:53 | 5:42 |
| 3 | 11.8 | 5:53 | 5:42 |
| 4 | 11.8 | 5:53 | 5:42 |
| 5 | 11.8 | 5:52 | 5:42 |
| 6 | 11.8 | 5:52 | 5:42 |
| 7 | 11.9 | 5:51 | 5:43 |
| 8 | 11.9 | 5:51 | 5:43 |
| 9 | 11.9 | 5:50 | 5:43 |
| 10 | 11.9 | 5:50 | 5:43 |
| 11 | 11.9 | 5:49 | 5:43 |
| 12 | 11.9 | 5:49 | 5:43 |
| 13 | 11.9 | 5:48 | 5:43 |
| 14 | 11.9 | 5:47 | 5:43 |
| 15 | 11.9 | 5:47 | 5:43 |
| 16 | 11.9 | 5:46 | 5:43 |
| 17 | 11.9 | 5:46 | 5:42 |
| 18 | 12.0 | 5:45 | 5:42 |
| 19 | 12.0 | 5:45 | 5:42 |
| 20 | 12.0 | 5:44 | 5:42 |
| 21 | 12.0 | 5:44 | 5:42 |
| 22 | 12.0 | 5:43 | 5:42 |
| 23 | 12.0 | 5:42 | 5:42 |
| 24 | 12.0 | 5:42 | 5:42 |
| 25 | 12.0 | 5:41 | 5:42 |
| 26 | 12.0 | 5:41 | 5:42 |
| 27 | 12.0 | 5:40 | 5:42 |
| 28 | 12.0 | 5:39 | 5:42 |
| 29 | 12.1 | 5:39 | 5:42 |
| 30 | 12.1 | 5:38 | 5:42 |
| 31 | 12.1 | 5:38 | 5:42 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 6.24 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 3.71 kWh/m² to a high of 6.24 kWh/m² in March across the year — March'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 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 |
| 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 | 6.2 | Intense |
| 2 | 6.2 | Intense |
| 3 | 6.2 | Intense |
| 4 | 6.2 | Intense |
| 5 | 6.2 | Intense |
| 6 | 6.2 | Intense |
| 7 | 6.3 | Intense |
| 8 | 6.3 | Intense |
| 9 | 6.3 | Intense |
| 10 | 6.3 | Intense |
| 11 | 6.3 | Intense |
| 12 | 6.3 | Intense |
| 13 | 6.3 | Intense |
| 14 | 6.3 | Intense |
| 15 | 6.3 | Intense |
| 16 | 6.3 | Intense |
| 17 | 6.3 | Intense |
| 18 | 6.3 | Intense |
| 19 | 6.2 | Intense |
| 20 | 6.2 | Intense |
| 21 | 6.2 | Intense |
| 22 | 6.2 | Intense |
| 23 | 6.2 | Intense |
| 24 | 6.2 | Intense |
| 25 | 6.2 | Intense |
| 26 | 6.2 | Intense |
| 27 | 6.2 | Intense |
| 28 | 6.2 | Intense |
| 29 | 6.1 | Intense |
| 30 | 6.1 | Intense |
| 31 | 6.1 | Intense |
Hazard calendar for San Isidro
None of San Isidro's seasonal hazards are active in March. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
San Isidro's rainy season runs May–November, when most of the year's rain falls.
Is March a good time to visit San Isidro?
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 San Isidro for sightseeing.
What to pack for San Isidro in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, San Isidro sees daytime highs around 25°C and nights near 21°C. Pack rain gear and sun protection. Worth having: light clothes. About 26 days see rain.
Sea temperature near San Isidro in March
The nearest coast averages about 30°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 28 km away) is warmest in March at about 30°C and coldest in November 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) | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 30 | Tropical |
| Mar | 30 | Tropical |
| Apr | 30 | Tropical |
| May | 29 | Tropical |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 28 | Tropical |
| Nov | 28 | Warm |
| Dec | 28 | Tropical |
UV index in San Isidro in March
Clear-sky midday UV in March peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in San Isidro peaks around March 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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) | 12 | 14 | 15 | 14 | 13 | 13 | 12 | 13 | 13 | 12 | 12 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 14 | Extreme |
| Mar | 15 | Extreme |
| Apr | 14 | Extreme |
| May | 13 | Extreme |
| Jun | 13 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 13 | Extreme |
| Oct | 12 | Extreme |
| Nov | 12 | Extreme |
| Dec | 10 | Extreme |
Where is San Isidro?
San Isidro sits at 9.4°N, 83.7°W, 713 m above sea level, in Costa Rica. The nearest listed city is Manuel Antonio, 51 km away.
Topography around San Isidro
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Isidro.
Within 3 km, the terrain around San Isidro has only modest variations in elevation — a maximum elevation change of 211 m around an average of 723 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,363 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,764 m.
The land around San Isidro is covered by trees (40%), grassland (31%) and artificial surfaces (28%) within 3 km, trees (71%) and grassland (27%) within 16 km, and trees (67%) and water (22%) within 80 km.
Costa Rica travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 59% of US
- price level, 2025
- GDP per capita
- $19,970
- 2025
- Happiness
- 7.4 / 10
- World Happiness, 2025
- Safe drinking water
- 81%
- of population, 2024
- Homicide rate
- 17.7
- per 100k, 2023
- Road deaths
- 14.8
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 516
- 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 San Isidro (9.3674°, -83.6971°, elevation 713 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. 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).