Ilocos Sur, Philippines Weather

Ilocos Sur,  Weather
(Photo by Brian Kairuz on Unsplash)

Current conditions

Updated:
24°C
75.2°F
°C °F

Condition: Moderate Drizzle

Pressure: 980 hPa

Feel like: 28 °C

Temperature: 24°C

Cloud: 98%

Humidity: 89%

Wind: SW - 10 km/h

Visibility: 2.16 km

Weather forecast

Sat
08 Aug
22°C / 24°C
Slight Thunderstorm
Sun
09 Aug
22°C / 25°C
Thunderstorm With Slight
Mon
10 Aug
22°C / 27°C
Slight Thunderstorm
Tue
11 Aug
23°C / 25°C
Moderate Drizzle
Wed
12 Aug
23°C / 26°C
Slight Thunderstorm
Hourly forecast today:
03:00 AM
23° / 24°
23° / 24°
Moderate Drizzle
89% 34 km/h
04:00 AM
24° / 24°
24° / 24°
Moderate Rain Showers
96% 29 km/h
05:00 AM
25° / 25°
25° / 25°
Slight Thunderstorm
97% 30 km/h
06:00 AM
24° / 24°
24° / 24°
Slight Thunderstorm
96% 37 km/h
07:00 AM
24° / 25°
24° / 25°
Drizzle Dense Intensity
94% 29 km/h
08:00 AM
22° / 23°
22° / 23°
Slight Thunderstorm
94% 39 km/h
09:00 AM
23° / 23°
23° / 23°
Slight Rain Showers
98% 37 km/h
10:00 AM
23° / 23°
23° / 23°
Drizzle
98% 22 km/h
11:00 AM
22° / 22°
22° / 22°
Moderate Drizzle
98% 26 km/h
12:00 PM
21° / 22°
21° / 22°
Slight Thunderstorm
98% 28 km/h
13:00 PM
21° / 22°
21° / 22°
Moderate Drizzle
97% 26 km/h

30 Day Averages and Extremes

  • Average high 26.53°C
  • Average low 21.93°C
  • Hottest day 30°C (27 July 2026)
  • Coldest day 20°C (22 July 2026)
  • Average humidity 94.07%
  • Days with precipitation 30 days
  • Highest precipitation 100 mm (08 August 2026)

Yesterday's Data

  • Max: 25°C
  • Min: 21°C
  • Total Precipitation: 31 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

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 warm weather in Ilocos Sur, with temperatures between 21ºC to 24ºC (69.8ºF to 75.2ºF), you might consider wearing:
- Sunglasses
- Light, breathable socks
- Cotton or linen fabrics
- Sun hat or cap

Temperature

Early
23°C / 24°C
Morning
23°C / 23°C
Afternoon
21°C / 22°C
Evening
21°C / 22°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 430
  • CO 123
  • NH3 0
  • NO2 0
  • O3 76
  • PM10 6
  • PM25 4
  • SO2 0
  • CH4 1,336

Sunrise / Sunset

21:39
10:27