San Juan Weather Today — San José, Costa Rica
Current temperature, rain chance, humidity, wind and air quality in San Juan, plus an hourly and 3-day forecast. Updated through the day.
09:31
Sun, 20 Sep 2026
📍 San José, Costa Rica
San Juan??
23
°C
Overcast
Feels 24°C · 73°F
💧 72% Humidity
💨 ↑ 3.6 km/h NNE
👁 10 km Visibility
🌧 0 mm Precip
☁ 93% Cloud
☀️ UV Moderate
🌿 AQI Good
☀️ UV Index
2.6
Moderate
🔵 Pressure
1015
hPa · 29.97 in
💨 Wind
3.6
km/h · Gust 4 km/h
↑ NNE
💧 Humidity
72%
Dew point 17.1°C
👁 Visibility
10
km · 6 miles
🌡 Heat Index
24.8°
Wind chill 22.5°C
🌿 Air Quality
Good
US EPA Index: 1
🌅
Sunrise
05:25 AM
🌇
Sunset
05:33 PM
📅 3-Day Forecast
Sunday
20 Sep 2026
Light rain shower
24°
/
16°
💧89%
🌧21.48mm
💨6
☀️UV 6.8
Monday
21 Sep 2026
Light rain shower
21°
/
16°
💧96%
🌧13.08mm
💨5
☀️UV 9.1
Tuesday
22 Sep 2026
Light rain shower
21°
/
16°
💧95%
🌧9.18mm
💨6
☀️UV 12.3
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