Ilagan climate — normals and trends
Ilagan (Philippines) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 24.0 °C and it receives 2,616 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is June (26.4 °C on average) and the coldest is January (20.8 °C). Rainfall peaks in July.
Ilagan averages 0 frost days, 121 hot days (≥ 30 °C) and 288 rainy days per year.
Ilagan has warmed by +1.7 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.0 °C (on 9 July 1970) and the coldest 11.7 °C (on 24 January 1978).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
IlaganCagayan Valley
- coords
- 17.15°, 121.89°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.0°C
Average daily high
28.1°C
Average daily low
21.1°C
Annual rainfall
2,616mm
Sunshine / day
9.4h
Mean relative humidity
85%
Average peak wind
8.0km/h
Seasonal range
5.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
121 d/yr
Rainy days (≥ 1 mm)
288 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.0 °C
Average feels-like low
24.6 °C
Average peak gust
27.2 km/h
Tropical nights (≥ 20 °C)
269 d/yr
Solar radiation
16.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.64 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
36.0 °C
9 July 1970
Coldest day
11.7 °C
24 January 1978
Wettest day
307 mm
27 October 1991
Windiest day
60.7 km/h
19 October 2016
Strongest gust
166.0 km/h
19 October 2016
Hottest feels-like
43.2 °C
4 June 1952
Coldest feels-like
11.6 °C
3 March 1963
Sunniest day
12.7 h
21 June 1957
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 24.1 °C | +0.1 °C | 157 mm | +32 mm |
| Feb | 25.0 °C | -0.1 °C | 236 mm | +135 mm |
| Mar | 27.2 °C | +0.1 °C | 193 mm | +79 mm |
| Apr | 30.6 °C | +1.1 °C | 89 mm | -31 mm |
| May | 31.6 °C | +0.6 °C | 195 mm | -15 mm |
| Jun | 31.6 °C | +0.3 °C | 290 mm | +54 mm |
| Jul | 30.3 °C | -0.2 °C | 493 mm | +172 mm |
| Aug | 30.0 °C | -0.1 °C | 401 mm | +85 mm |
| Sep | 28.9 °C | -0.7 °C | 435 mm | +155 mm |
| Oct | 29.4 °C | +1.4 °C | 297 mm | +35 mm |
| Nov | 27.4 °C | +1.0 °C | 483 mm | +217 mm |
| Dec | 25.6 °C | +1.0 °C | 646 mm | +381 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Ilagan?
Ilagan has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 24.0 °C and it receives 2,616 mm of precipitation per year.
What is the hottest day ever recorded in Ilagan?
The hottest day measured in Ilagan between 1940 and 2025 was 9 July 1970, reaching 36.0 °C.
What is the coldest day in Ilagan?
The coldest day measured in Ilagan between 1940 and 2025 was 24 January 1978, at 11.7 °C.
Does it snow in Ilagan?
Almost never: Ilagan sees virtually no snow, with about 0 frost days per year.
Has the climate of Ilagan warmed?
Yes: Ilagan warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ilagan?
The wettest day measured in Ilagan between 1940 and 2025 was 27 October 1991, with 307 mm of rain in 24 hours.
What was the windiest day in Ilagan?
The windiest day measured in Ilagan between 1940 and 2025 was 19 October 2016, with winds reaching 60.7 km/h.
What is the warmest month in Ilagan?
The warmest month in Ilagan is June (26.4 °C on average); the coldest is January (20.8 °C).
How much does it rain in Ilagan?
Ilagan receives on average 2,616 mm of precipitation per year, spread over about 288 rainy days.
Is it sunny in Ilagan?
Ilagan gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
Are there tropical nights in Ilagan?
Yes: Ilagan has on average 269 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ilagan?
In Ilagan, between 1940 and 2025, the highest apparent temperature reached 43.2 °C on 4 June 1952, and the lowest was 11.6 °C on 3 March 1963.
Compare Ilagan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ilagan