Ilocos Sur, Philippines Weather
- Ilocos Sur, Philippines Weather
- Current conditions
- Weather forecast
- Averages and extremes
- Yesterday's Data
- 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 Weather Summary
- Weather averages by month
- Ilocos Sur's weather
- Frequently asked questions
- Comments
Current conditions
Updated:
Partly Cloudy
23°C
°C
°F
Condition: Partly Cloudy
Pressure: 986 hPa
Feel like: 28 °C
Temperature: 23°C
Cloud: 65%
Humidity: 98%
Wind: ESE - 4 km/h
Visibility: 17.54 km
Thu
24 Sep
20°C / 28°C
Slight Thunderstorm
Fri
25 Sep
20°C / 29°C
Drizzle
Sat
26 Sep
21°C / 29°C
Moderate Drizzle
Sun
27 Sep
20°C / 29°C
Drizzle
Mon
28 Sep
20°C / 28°C
Drizzle
Hourly forecast today:
12:00 PM
22° / 23°
22° / 23°
Partly Cloudy
98%
10 km/h
13:00 PM
22° / 23°
22° / 23°
Overcast
98%
8 km/h
14:00 PM
22° / 23°
22° / 23°
Overcast
97%
7 km/h
15:00 PM
22° / 23°
22° / 23°
Overcast
95%
6 km/h
16:00 PM
22° / 22°
22° / 22°
Partly Cloudy
95%
6 km/h
17:00 PM
22° / 22°
22° / 22°
Moderate Drizzle
97%
9 km/h
18:00 PM
21° / 21°
21° / 21°
Drizzle
99%
9 km/h
19:00 PM
21° / 21°
21° / 21°
Overcast
99%
8 km/h
20:00 PM
21° / 21°
21° / 21°
Overcast
99%
9 km/h
21:00 PM
21° / 21°
21° / 21°
Overcast
100%
10 km/h
22:00 PM
21° / 21°
21° / 21°
Overcast
99%
10 km/h
30 Day Averages and Extremes
- Average high 28.17°C
- Average low 21.07°C
- Hottest day 30°C (13 September 2026)
- Coldest day 20°C (24 September 2026)
- Average humidity 90.5%
- Days with precipitation 30 days
- Highest precipitation 88 mm (09 September 2026)
Yesterday's Data
- Max: 29°C
- Min: 21°C
- Total Precipitation: 14 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
- Metropolitan Manila
- Quezon
- Cebu
- Camiguin
- Davao del Sur
- Ilocos Norte
- La Union
- Maguindanao
- Sarangani
- Negros Oriental
- Oriental Mindoro
- Quirino
- Surigao del Norte
- Tarlac
- Cavite
- Nueva Vizcaya
- Ifugao
- Tawi-Tawi
- Agusan del Sur
- Aklan
- Apayao
- Aurora
- Basilan
- Bataan
- Batanes
- Batangas
- Bohol
- Bukidnon
- Bulacan
- Camarines Norte
- Camarines Sur
- Capiz
- Catanduanes
- Compostela Valley
- Davao del Norte
- Davao Occidental
- Davao Oriental
- Dinagat Islands
- Eastern Samar
- Guimaras
- Iloilo
- Isabela
- Kalinga
- Lanao del Norte
- Lanao del Sur
- Masbate
- Mindoro Occidental
- Misamis Occidental
- Misamis Oriental
- Negros Occidental
- Northern Samar
- Nueva Ecija
- Palawan
- Pampanga
- Pangasinan
- Romblon
- Samar
- Siquijor
- Sorsogon
- South Cotabato
- Southern Leyte
- Sultan Kudarat
- Sulu
- Surigao del Sur
- Zambales
- Zamboanga del Norte
- Zamboanga del Sur
- Zamboanga Sibugay
- Leyte
- Cotabato
- Marinduque
- Rizal
- Biliran
- Abra
- Agusan del Norte
- Antique
- Laguna
- Albay
- Mountain Province
- Benguet
- Cagayan
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 28ºC (82.4ºF), consider wearing:
- Wide-brimmed sun hat
- Loose and airy fabrics like linen or cotton
- Breathable shorts or skirts
- Lightweight t-shirt or tank top
Temperature
Early
23°C / 27°C
Morning
23°C / 23°C
Afternoon
22°C / 23°C
Evening
21°C / 21°C
Air quality
Moderate
Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals
- CO2 505
- CO 240
- NH3 0
- NO2 2
- O3 85
- PM10 10
- PM25 9
- SO2 3
- CH4 1,523
Sunrise / Sunset
21:46
09:52