Ilocos Sur, Philippines Weather

  1. Ilocos Sur, Philippines Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Ilocos Sur over the next 12 hours
  7. Temperature and possibility of rain in Ilocos Sur in the coming days
  8. Rainfall in Ilocos Sur in the coming days
  9. Ilocos Sur Weather Summary
  10. Weather averages by month
  11. Ilocos Sur's weather
  12. Frequently asked questions
  13. Comments
Ilocos Sur, Weather
(Photo by Brian Kairuz on Unsplash)

Current conditions

Updated:
25°C
77.0°F
°C °F

Condition: Clear Sky

Pressure: 983 hPa

Feel like: 30 °C

Temperature: 25°C

Cloud: 4%

Humidity: 96%

Wind: SE - 7 km/h

Visibility: 13.54 km

Weather forecast

Mon
22 Jun
21°C / 27°C
Slight Thunderstorm
Tue
23 Jun
22°C / 25°C
Thunderstorm With Slight
Wed
24 Jun
23°C / 27°C
Slight Thunderstorm
Thu
25 Jun
21°C / 29°C
Thunderstorm With Slight
Fri
26 Jun
23°C / 26°C
Thunderstorm Heavy Hail
Hourly forecast today:
12:00 PM
24° / 25°
24° / 25°
Clear Sky
96% 14 km/h
13:00 PM
24° / 24°
24° / 24°
Clear Sky
98% 13 km/h
14:00 PM
23° / 23°
23° / 23°
Clear Sky
99% 10 km/h
15:00 PM
23° / 23°
23° / 23°
Clear Sky
99% 8 km/h
16:00 PM
23° / 23°
23° / 23°
Clear Sky
99% 9 km/h
17:00 PM
22° / 22°
22° / 22°
Clear Sky
99% 10 km/h
18:00 PM
22° / 22°
22° / 22°
Overcast
99% 11 km/h
19:00 PM
22° / 22°
22° / 22°
Mainly Clear
99% 12 km/h
20:00 PM
21° / 21°
21° / 21°
Clear Sky
99% 12 km/h
21:00 PM
21° / 21°
21° / 21°
Overcast
99% 11 km/h
22:00 PM
21° / 21°
21° / 21°
Overcast
99% 11 km/h

30 Day Averages and Extremes

  • Average high 28.5°C
  • Average low 21.97°C
  • Hottest day 31°C (17 June 2026)
  • Coldest day 21°C (15 June 2026)
  • Average humidity 88.43%
  • Days with precipitation 30 days
  • Highest precipitation 67 mm (05 July 2026)

Yesterday's Data

  • Max: 30°C
  • Min: 22°C
  • Total Precipitation: 2 mm

Temperature and possibility of rain in Ilocos Sur over the next 12 hours

Temperature and possibility of rain in Ilocos Sur in the coming days

Rainfall in Ilocos Sur in the coming days

Ilocos Sur Climate Summary

Ilocos Sur features a Tropical monsoon (Köppen classification: Am), with an average annual temperature of 27.79ºC (82.02ºF), which is about 0.57% higher than the national average for Philippines. Annually, the city experiences approximately 95.19 millimeters (3.75 inches) of rainfall, spread across 154.91 rainy days, accounting for 42.44% of the year.

Longitude 17.2278664
Latitude 120.5739579
Yearly high temperature 30.35ºC (86.63ºF)
Yearly low temperature 23.03ºC (73.45ºF)
Hottest month April 31.88ºC (89.38ºF)
Coldest month January 20.78ºC (69.4ºF)
Yearly precip 95.19mm (3.75in)
Days with rainfall 154.91 days (42.44%)
Driest month February (69.68%)
Wettest month August (80.25%)

Weather averages by month

Month High / Low (°C) Rain
January 28.75° / 20.78° 2.55 days
February 29.42° / 20.88° 1.91 days
March 30.86° / 22.02° 2.45 days
April 31.88° / 23.52° 7.55 days
May 32.47° / 24.85° 14.82 days
June 31.28° / 24.68° 23.36 days
July 29.98° / 23.98° 26.36 days
August 29.6° / 23.81° 25.91 days
September 30.06° / 23.65° 22.09 days
October 30.1° / 23.05° 13.91 days
November 30.23° / 22.74° 7.82 days
December 29.6° / 22.36° 6.18 days

Ilocos Sur's weather

Frequently asked questions

1. What is the hottest month in Ilocos Sur?

April has the highest average monthly temperature (daily mean of 31.88ºC) and January are the coolest (daily mean of 20.78ºC).

2. What should I wear in Ilocos Sur today?

For today's very hot weather in Ilocos Sur, with the high temperatures above 30ºC (86.0ºF), consider wearing:
- Broad-brimmed sun hat
- High SPF sunscreen for outdoor activities
- UV-blocking sunglasses
- Sleeveless tops or vests

Temperature

Early
24°C / 30°C
Morning
24°C / 27°C
Afternoon
23°C / 23°C
Evening
21°C / 21°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 504
  • CO 223
  • NH3 0
  • NO2 3
  • O3 56
  • PM10 11
  • PM25 10
  • SO2 1
  • CH4 1,418

Sunrise / Sunset

21:24
10:34