San Isidro weather
At 12:30 PM local time it was showers and 23°C (73°F). Mostly light, on-and-off rain; heavier around 12 PM, 1 PM, 4 PM, 11 AM (8.8 mm total). Best months for weather: Jan–Mar. San Isidro sits 713 m (2,339 ft) above sea level, which keeps it cooler than the coast. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for San Isidro, San José, Costa Rica.
Current conditions
- Clouds
- 100%
- Chance of rain
- 100%
- Rain
- 2.2 mm/h
Hourly Forecast
Mostly light, on-and-off rain; heavier around 12 PM, 1 PM, 4 PM, 11 AM (8.8 mm total)
Daily Forecast
Best Time to Visit
Peak season Jan–MarOff season May–Nov
About San Isidro weather
Is it raining in San Isidro right now?
Yes. It’s showers and 23° right now. Mostly light, on-and-off rain; heavier around 12 PM, 1 PM, 4 PM, 11 AM (8.8 mm total).
What’s the weather like in San Isidro this week?
Over the next 7 days, expect highs of 24–26° and lows of 18–20°. Rain is likely on 7 of 7 days (Saturday, Sunday, Monday, Tuesday, Wednesday, Thursday, Friday). The driest day looks like Thursday.
Has it been raining in San Isidro lately?
In the past 7 days, San Isidro had 5 rainy days and 115.5 mm of rain in total.
What should I pack for San Isidro?
For the coming week, bring an umbrella or rain jacket and a light jacket.
San Isidro weather by month
When is the best time to visit San Isidro?
Based on weather alone, the best time to visit San Isidro is Jan–Mar, according to NASA's 2001–2025 climate averages. May–Nov tends to be the least pleasant. Average highs run from 23°C (74°F) in November to 26°C (79°F) in March.
What is the rainiest month in San Isidro?
October is the wettest month, with about 277 mm (10.9 in) of rain on average. February is the driest, with about 60 mm (2.4 in).
What is the hottest month in San Isidro?
March is the warmest, with average highs of 26°C (79°F) and lows of 17°C (63°F). November is the coolest, with highs of 23°C (74°F) and lows of 18°C (65°F).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months