Vigan climate — normals and trends
Vigan (Philippines) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 25.9 °C and it receives 2,559 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 May (27.1 °C on average) and the coldest is January (24.3 °C). Rainfall peaks in August.
Vigan averages 0 frost days, 30 hot days (≥ 30 °C) and 202 rainy days per year.
Vigan has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The hottest day of the period reached 33.8 °C (on 12 May 2006) and the coldest 16.8 °C (on 20 January 1961).
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
ViganIlocos
- coords
- 17.57°, 120.39°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.9°C
Average daily high
28.3°C
Average daily low
23.7°C
Annual rainfall
2,559mm
Sunshine / day
10.2h
Mean relative humidity
79%
Average peak wind
16.3km/h
Seasonal range
2.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
30 d/yr
Rainy days (≥ 1 mm)
202 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.1 °C
Average feels-like low
26.4 °C
Average peak gust
30.0 km/h
Tropical nights (≥ 20 °C)
357 d/yr
Solar radiation
19.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.73 · 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
33.8 °C
12 May 2006
Coldest day
16.8 °C
20 January 1961
Wettest day
323 mm
5 August 1982
Windiest day
79.2 km/h
15 September 2018
Strongest gust
148.7 km/h
4 July 2001
Hottest feels-like
39.5 °C
12 May 2006
Coldest feels-like
13.6 °C
19 January 1961
Sunniest day
12.6 h
17 June 1953
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 | 28.7 °C | +1.3 °C | 48 mm | +31 mm |
| Feb | 29.3 °C | +1.7 °C | 36 mm | +22 mm |
| Mar | 29.5 °C | +1.1 °C | 33 mm | +11 mm |
| Apr | 29.8 °C | +0.8 °C | 20 mm | -29 mm |
| May | 30.1 °C | +0.9 °C | 236 mm | +53 mm |
| Jun | 29.2 °C | +0.4 °C | 534 mm | +138 mm |
| Jul | 27.8 °C | -0.4 °C | 1172 mm | +637 mm |
| Aug | 28.7 °C | +0.8 °C | 520 mm | -40 mm |
| Sep | 28.7 °C | +0.7 °C | 833 mm | +413 mm |
| Oct | 29.6 °C | +0.9 °C | 280 mm | +57 mm |
| Nov | 29.5 °C | +0.8 °C | 237 mm | +132 mm |
| Dec | 28.8 °C | +0.8 °C | 50 mm | +13 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 Vigan?
Vigan has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 25.9 °C and it receives 2,559 mm of precipitation per year.
What is the hottest day ever recorded in Vigan?
The hottest day measured in Vigan between 1940 and 2025 was 12 May 2006, reaching 33.8 °C.
What is the coldest day in Vigan?
The coldest day measured in Vigan between 1940 and 2025 was 20 January 1961, at 16.8 °C.
Does it snow in Vigan?
Almost never: Vigan sees virtually no snow, with about 0 frost days per year.
Has the climate of Vigan warmed?
Yes: Vigan warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Vigan?
The wettest day measured in Vigan between 1940 and 2025 was 5 August 1982, with 323 mm of rain in 24 hours.
What was the windiest day in Vigan?
The windiest day measured in Vigan between 1940 and 2025 was 15 September 2018, with winds reaching 79.2 km/h.
What is the warmest month in Vigan?
The warmest month in Vigan is May (27.1 °C on average); the coldest is January (24.3 °C).
How much does it rain in Vigan?
Vigan receives on average 2,559 mm of precipitation per year, spread over about 202 rainy days.
Is it sunny in Vigan?
Vigan gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
Are there tropical nights in Vigan?
Yes: Vigan has on average 357 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Vigan?
In Vigan, between 1940 and 2025, the highest apparent temperature reached 39.5 °C on 12 May 2006, and the lowest was 13.6 °C on 19 January 1961.
Compare Vigan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Vigan