Live Weather & Forecast
Weather in San Juan
Ilocos Sur, Philippines · Real-time conditions & 3-day outlook
30°C
Feels like 34°C
86°F / Feels 92°F
Sunny
San Juan, Ilocos Sur
🌞 Daytime
Updated: 2026-05-03 08:45
Humidity
65%
Wind
5.8 km/h S
Wind Gust
6.6 km/h
Pressure
1010 mb
Visibility
10 km
UV Index
2.6
(Low)
Precipitation
0 mm
Cloud Cover
11%
Dew Point
22.4°C
Wind Degree
180°
Air Quality Index
US EPA: Moderate
UK DEFRA: Low (2)
CO
176.9 μg/m³
NO₂
7.8 μg/m³
O₃
79 μg/m³
SO₂
4.2 μg/m³
PM 2.5
21.7 μg/m³
PM 10
24.4 μg/m³
Today's Hourly Forecast
24-hour breakdown for San Juan, Ilocos Sur
12 AM
28°
Clear
1 AM
27°
Clear
2 AM
27°
Clear
3 AM
27°
Clear
4 AM
27°
Clear
5 AM
27°
Clear
6 AM
27°
Sunny
7 AM
28°
Sunny
8 AM
30°
Sunny
9 AM
31°
Sunny
10 AM
32°
Sunny
11 AM
32°
Sunny
12 PM
31°
Sunny
1 PM
31°
Sunny
2 PM
31°
Sunny
3 PM
31°
Sunny
4 PM
31°
Sunny
5 PM
30°
Patchy rain nearby
6 PM
29°
Patchy rain nearby
7 PM
28°
Clear
8 PM
28°
Patchy rain nearby
9 PM
28°
Clear
10 PM
28°
Clear
11 PM
27°
Clear
3-Day Forecast
Daily overview for San Juan, Ilocos Sur
Today
Patchy rain nearby
32°
/
27°
🌧️ 82% chance of rain
💧 Avg. humidity: 72%
💨 Max wind: 20.2 km/h
🌧️ Total precip: 0.44 mm
☀️ UV Index: 11.6
🌅 Sunrise: 05:32 AM
🌇 Sunset: 06:19 PM
🌙 Waning Gibbous
🌑 Moon: 98% lit
Mon, May 4
Sunny
32°
/
26°
🌧️ 0% chance of rain
💧 Avg. humidity: 73%
💨 Max wind: 19.8 km/h
🌧️ Total precip: 0.01 mm
☀️ UV Index: 12
🌅 Sunrise: 05:31 AM
🌇 Sunset: 06:20 PM
🌙 Waning Gibbous
🌑 Moon: 95% lit
Tue, May 5
Patchy rain nearby
32°
/
26°
🌧️ 77% chance of rain
💧 Avg. humidity: 71%
💨 Max wind: 19.4 km/h
🌧️ Total precip: 0.92 mm
☀️ UV Index: 11.8
🌅 Sunrise: 05:31 AM
🌇 Sunset: 06:20 PM
🌙 Waning Gibbous
🌑 Moon: 90% lit
Best Time to Visit San Juan
Plan your trip to San Juan, Philippines around the most favorable weather conditions.
Peak Season
November – April
Dry season — low humidity, clear skies, comfortable temperatures.
Shoulder Season
May, October
Fewer crowds, moderate prices, mild weather.
Off Season
June – September
Wet/monsoon season; heavier rainfall possible.
Frequently Asked Questions
What is the current weather in San Juan?
Current conditions in San Juan: Sunny, temperature 30°C, humidity 65%.
What is the best time to visit San Juan?
The best time to visit San Juan is typically November – April. Dry season — low humidity, clear skies, comfortable temperatures.
What is the climate like in San Juan?
San Juan is located at approximately 17.7° latitude. It has a tropical or subtropical climate with wet and dry seasons.
Does it rain a lot in San Juan?
The wettest period in San Juan is typically during June – September. Wet/monsoon season; heavier rainfall possible.
What should I pack for a trip to San Juan?
For visits to San Juan during November – April: light clothing and sun protection. For June – September: layers and a waterproof jacket are recommended.
What country is San Juan in?
San Juan is located in Philippines, in the state of Ilocos Sur.
What are the public holidays in San Juan in 2026?
View the 2026 public holidays for San Juan on our Holidays page.
What are the GPS coordinates used for the weather forecast in San Juan?
The weather forecast for San Juan uses coordinates 17.7422, 120.4583.
What is the current temperature outside in San Juan?
The current outdoor temperature in San Juan is 30°C (86°F) with sunny.
What is the hourly weather forecast for San Juan today?
Today's hour-by-hour weather breakdown for San Juan 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 Juan tomorrow hour by hour?
Tomorrow's forecast for San Juan shows a high of 32°C and a low of 26°C. See the 3-Day Forecast section above for a full hourly breakdown.
What is the chance of rain today in San Juan?
There is a 82% chance of rain in San Juan today. Check the hourly forecast above for a time-by-time breakdown of when rain is most likely.
Is it going to rain today in San Juan?
Yes, there is a 82% chance of rain in San Juan today — consider carrying an umbrella. Check the hourly forecast above for the most likely rain windows.