Iba climate — normals and trends
Iba (Philippines) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 26.1 °C and it receives 2,729 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 April (27.5 °C on average) and the coldest is January (24.8 °C). Rainfall peaks in August.
Iba averages 0 frost days, 85 hot days (≥ 30 °C) and 201 rainy days per year.
Iba 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 34.7 °C (on 10 May 1979) and the coldest 17.5 °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
IbaCentral Luzon
- coords
- 15.33°, 119.98°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.1°C
Average daily high
28.8°C
Average daily low
24.0°C
Annual rainfall
2,729mm
Sunshine / day
9.9h
Mean relative humidity
80%
Average peak wind
11.8km/h
Seasonal range
2.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
85 d/yr
Rainy days (≥ 1 mm)
201 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.2 °C
Average feels-like low
27.8 °C
Average peak gust
29.7 km/h
Tropical nights (≥ 20 °C)
362 d/yr
Solar radiation
18.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.69 · 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
34.7 °C
10 May 1979
Coldest day
17.5 °C
20 January 1961
Wettest day
266 mm
10 October 1971
Windiest day
62.0 km/h
26 December 1947
Strongest gust
141.8 km/h
11 October 1989
Hottest feels-like
42.1 °C
5 May 2016
Coldest feels-like
16.2 °C
10 January 1971
Sunniest day
12.3 h
16 July 1960
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 | 28.9 °C | +0.9 °C | 43 mm | +28 mm |
| Feb | 29.3 °C | +0.6 °C | 69 mm | +53 mm |
| Mar | 30.7 °C | +0.8 °C | 41 mm | +13 mm |
| Apr | 31.3 °C | +0.6 °C | 40 mm | -15 mm |
| May | 31.1 °C | +0.9 °C | 208 mm | +14 mm |
| Jun | 29.1 °C | +0.3 °C | 522 mm | +102 mm |
| Jul | 27.3 °C | -0.7 °C | 1005 mm | +435 mm |
| Aug | 28.7 °C | +1.1 °C | 450 mm | -153 mm |
| Sep | 28.4 °C | +0.5 °C | 704 mm | +289 mm |
| Oct | 29.7 °C | +1.0 °C | 413 mm | +150 mm |
| Nov | 29.5 °C | +0.6 °C | 212 mm | +110 mm |
| Dec | 29.2 °C | +0.9 °C | 46 mm | -3 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 Iba?
Iba has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 26.1 °C and it receives 2,729 mm of precipitation per year.
What is the hottest day ever recorded in Iba?
The hottest day measured in Iba between 1940 and 2025 was 10 May 1979, reaching 34.7 °C.
What is the coldest day in Iba?
The coldest day measured in Iba between 1940 and 2025 was 20 January 1961, at 17.5 °C.
Does it snow in Iba?
Almost never: Iba sees virtually no snow, with about 0 frost days per year.
Has the climate of Iba warmed?
Yes: Iba warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Iba?
The wettest day measured in Iba between 1940 and 2025 was 10 October 1971, with 266 mm of rain in 24 hours.
What was the windiest day in Iba?
The windiest day measured in Iba between 1940 and 2025 was 26 December 1947, with winds reaching 62.0 km/h.
What is the warmest month in Iba?
The warmest month in Iba is April (27.5 °C on average); the coldest is January (24.8 °C).
How much does it rain in Iba?
Iba receives on average 2,729 mm of precipitation per year, spread over about 201 rainy days.
Is it sunny in Iba?
Iba gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.
Are there tropical nights in Iba?
Yes: Iba has on average 362 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Iba?
In Iba, between 1940 and 2025, the highest apparent temperature reached 42.1 °C on 5 May 2016, and the lowest was 16.2 °C on 10 January 1971.
Compare Iba with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Iba