Live Weather & Forecast
Weather in San Antonio
Heredia, Costa Rica · Real-time conditions & 3-day outlook
28°C
Feels like 27°C
82°F / Feels 81°F
Sunny
San Antonio, Heredia
🌞 Daytime
Updated: 2026-05-12 14:30
Humidity
55%
Wind
9.4 km/h E
Wind Gust
10.8 km/h
Pressure
1020 mb
Visibility
16 km
UV Index
10.1
(Very High)
Precipitation
0 mm
Cloud Cover
25%
Dew Point
16.5°C
Wind Degree
81°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
186.9 μg/m³
NO₂
4.9 μg/m³
O₃
157 μg/m³
SO₂
2.3 μg/m³
PM 2.5
7.6 μg/m³
PM 10
9 μg/m³
Today's Hourly Forecast
24-hour breakdown for San Antonio, Heredia
12 AM
22°
Clear
1 AM
21°
Clear
2 AM
20°
Clear
3 AM
20°
Clear
4 AM
19°
Clear
5 AM
18°
Clear
6 AM
18°
Clear
7 AM
18°
Sunny
8 AM
20°
Sunny
9 AM
22°
Sunny
10 AM
25°
Sunny
11 AM
28°
Sunny
12 PM
30°
Sunny
1 PM
32°
Sunny
2 PM
28°
Sunny
3 PM
33°
Sunny
4 PM
34°
Sunny
5 PM
32°
Sunny
6 PM
30°
Sunny
7 PM
29°
Sunny
8 PM
27°
Sunny
9 PM
26°
Clear
10 PM
24°
Clear
11 PM
23°
Clear
3-Day Forecast
Daily overview for San Antonio, Heredia
Today
Sunny
34°
/
17°
🌧️ 0% chance of rain
💧 Avg. humidity: 61%
💨 Max wind: 12.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 10.3
🌅 Sunrise: 06:43 AM
🌇 Sunset: 08:17 PM
🌙 Waning Crescent
🌑 Moon: 29% lit
Wed, May 13
Sunny
32°
/
19°
🌧️ 0% chance of rain
💧 Avg. humidity: 59%
💨 Max wind: 13.3 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 10.2
🌅 Sunrise: 06:43 AM
🌇 Sunset: 08:18 PM
🌙 Waning Crescent
🌑 Moon: 19% lit
Thu, May 14
Sunny
33°
/
18°
🌧️ 0% chance of rain
💧 Avg. humidity: 55%
💨 Max wind: 26.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 9.2
🌅 Sunrise: 06:42 AM
🌇 Sunset: 08:19 PM
🌙 Waning Crescent
🌑 Moon: 11% lit
Best Time to Visit San Antonio
Plan your trip to San Antonio, Costa Rica around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in San Antonio?
Current conditions in San Antonio: Sunny, temperature 28°C, humidity 55%.
What is the best time to visit San Antonio?
The best time to visit San Antonio is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in San Antonio?
San Antonio is located at approximately 29.4° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in San Antonio?
The wettest period in San Antonio is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to San Antonio?
For visits to San Antonio during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is San Antonio in?
San Antonio is located in Costa Rica, in the state of Heredia.
What are the public holidays in San Antonio in 2026?
View the 2026 public holidays for San Antonio on our Holidays page.
What are the GPS coordinates used for the weather forecast in San Antonio?
The weather forecast for San Antonio uses coordinates 29.4246, -98.4951.
What is the current temperature outside in San Antonio?
The current outdoor temperature in San Antonio is 28°C (82°F) with sunny.
What is the hourly weather forecast for San Antonio today?
Today's hour-by-hour weather breakdown for San Antonio is shown in the Hourly Forecast section above, including temperature, rain chance, and conditions for each hour of the day.
What is the weather in San Antonio tomorrow hour by hour?
Tomorrow's forecast for San Antonio shows a high of 32°C and a low of 19°C. See the 3-Day Forecast section above for a full hourly breakdown.
What is the chance of rain today in San Antonio?
Rain is not expected in San Antonio today. Current forecast shows no significant rain probability.
Is it going to rain today in San Antonio?
No, rain is not forecast for San Antonio today. Current conditions show clear to partly cloudy skies.