San Juan weather
At 2:45 PM local time it was drizzle and 28°C (82°F). Mostly light, on-and-off rain; heavier around 12 AM, 1 AM, 2 AM (15.6 mm total). Best months for weather: Jul–Sep. San Juan sits 102 m (335 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 Juan, Loreto, Peru.
Current conditions
- Clouds
- 88%
- Chance of rain
- 94%
- Rain
- 0.7 mm/h
Hourly Forecast
Mostly light, on-and-off rain; heavier around 12 AM, 1 AM, 2 AM (15.6 mm total)
Daily Forecast
Best Time to Visit
Peak season Jul–SepOff season Oct–May
About San Juan weather
Is it raining in San Juan right now?
Yes. It’s drizzle and 28° right now. Mostly light, on-and-off rain; heavier around 12 AM, 1 AM, 2 AM (15.6 mm total).
What’s the weather like in San Juan this week?
Over the next 7 days, expect highs of 28–34° and lows of 24–25°. Rain is likely on 7 of 7 days (Saturday, Sunday, Monday, Tuesday, Wednesday, Thursday, Friday). The driest day looks like Wednesday.
Has it been raining in San Juan lately?
In the past 7 days, San Juan had 4 rainy days and 59.6 mm of rain in total.
What should I pack for San Juan?
For the coming week, bring an umbrella or rain jacket, light, breathable clothes and sunscreen.
San Juan weather by month
When is the best time to visit San Juan?
Based on weather alone, the best time to visit San Juan is Jul–Sep, according to NASA's 2001–2025 climate averages. Oct–May tends to be the least pleasant. Average highs run from 28°C (82°F) in June to 29°C (84°F) in September.
What is the rainiest month in San Juan?
March is the wettest month, with about 357 mm (14.1 in) of rain on average. August is the driest, with about 150 mm (5.9 in).
What is the hottest month in San Juan?
September is the warmest, with average highs of 29°C (84°F) and lows of 23°C (73°F). June is the coolest, with highs of 28°C (82°F) and lows of 22°C (72°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