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:
29°C
84.2°F
°C °F

Condition: Mainly Clear

Pressure: 985 hPa

Feel like: 33 °C

Temperature: 29°C

Cloud: 64%

Humidity: 69%

Wind: NW - 10 km/h

Visibility: 24.14 km

Weather forecast

Tue
14 Apr
22°C / 32°C
Partly Cloudy
Wed
15 Apr
21°C / 33°C
Partly Cloudy
Thu
16 Apr
21°C / 33°C
Overcast
Fri
17 Apr
20°C / 32°C
Overcast
Sat
18 Apr
21°C / 33°C
Drizzle
Hourly forecast today:
09:00 AM
23° / 29°
23° / 29°
Mainly Clear
69% 25 km/h
10:00 AM
23° / 28°
23° / 28°
Partly Cloudy
74% 20 km/h
11:00 AM
24° / 27°
24° / 27°
Partly Cloudy
81% 13 km/h
12:00 PM
24° / 26°
24° / 26°
Partly Cloudy
86% 9 km/h
13:00 PM
24° / 25°
24° / 25°
Partly Cloudy
90% 7 km/h
14:00 PM
23° / 24°
23° / 24°
Partly Cloudy
94% 8 km/h
15:00 PM
23° / 24°
23° / 24°
Partly Cloudy
95% 9 km/h
16:00 PM
23° / 24°
23° / 24°
Mainly Clear
94% 10 km/h
17:00 PM
22° / 23°
22° / 23°
Mainly Clear
90% 10 km/h
18:00 PM
21° / 23°
21° / 23°
Mainly Clear
87% 11 km/h
19:00 PM
20° / 23°
20° / 23°
Partly Cloudy
84% 11 km/h

30 Day Averages and Extremes

  • Average high 31.8°C
  • Average low 21.8°C
  • Hottest day 33°C (09 April 2026)
  • Coldest day 20°C (17 April 2026)
  • Average humidity 75.1%
  • Days with precipitation 17 days
  • Highest precipitation 48 mm (21 April 2026)

Yesterday's Data

  • Max: 33°C
  • Min: 23°C
  • Total Precipitation: 0 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 32ºC (89.6ºF), consider wearing:
- Sleeveless tops or vests
- Ultra-thin, breathable socks
- Broad-brimmed sun hat
- UV-blocking sunglasses

Temperature

Early
23°C / 32°C
Morning
23°C / 29°C
Afternoon
23°C / 24°C
Evening
18°C / 22°C

Air quality

Moderate

Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals

  • CO2 0
  • CO 145
  • NH3 0
  • NO2 0
  • O3 98
  • PM10 16
  • PM25 12
  • SO2 0
  • CH4 0

Sunrise / Sunset

21:42
10:13