Jacaltenango climate — normals and trends
Jacaltenango (Guatemala) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 17.6 °C and it receives 1,735 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 (19.5 °C on average) and the coldest is January (15.7 °C). Rainfall peaks in September.
Jacaltenango averages 0 frost days, 2 hot days (≥ 30 °C) and 177 rainy days per year.
Jacaltenango has warmed by +2.4 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.
The hottest day of the period reached 34.6 °C (on 7 May 2024) and the coldest 3.2 °C (on 9 January 1956).
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
JacaltenangoHuehuetenango
- coords
- 15.67°, -91.71°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.6°C
Average daily high
23.4°C
Average daily low
12.9°C
Annual rainfall
1,735mm
Sunshine / day
10.5h
Mean relative humidity
77%
Average peak wind
8.8km/h
Seasonal range
3.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
177 d/yr
Annual snowfall
0.0 cm
Average feels-like high
24.9 °C
Average feels-like low
12.6 °C
Average peak gust
33.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
19.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.83 · 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
34.6 °C
7 May 2024
Coldest day
3.2 °C
9 January 1956
Wettest day
136 mm
30 October 1975
Windiest day
19.0 km/h
16 March 1983
Strongest gust
71.3 km/h
16 March 1983
Hottest feels-like
35.2 °C
7 May 2024
Coldest feels-like
0.0 °C
9 January 1956
Sunniest day
12.6 h
21 July 2025
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 | 23.7 °C | +1.9 °C | 11 mm | -1 mm |
| Feb | 25.0 °C | +1.8 °C | 14 mm | +4 mm |
| Mar | 27.3 °C | +2.3 °C | 2 mm | -14 mm |
| Apr | 26.2 °C | 0.0 °C | 24 mm | -8 mm |
| May | 28.0 °C | +2.2 °C | 82 mm | -41 mm |
| Jun | 24.7 °C | +1.2 °C | 504 mm | +136 mm |
| Jul | 25.0 °C | +1.7 °C | 139 mm | -96 mm |
| Aug | 25.0 °C | +1.5 °C | 244 mm | -36 mm |
| Sep | 24.6 °C | +1.6 °C | 438 mm | +63 mm |
| Oct | 24.5 °C | +2.1 °C | 234 mm | +27 mm |
| Nov | 23.0 °C | +1.2 °C | 60 mm | +5 mm |
| Dec | 22.5 °C | +1.0 °C | 67 mm | +44 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 Jacaltenango?
Jacaltenango has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 17.6 °C and it receives 1,735 mm of precipitation per year.
What is the hottest day ever recorded in Jacaltenango?
The hottest day measured in Jacaltenango between 1940 and 2025 was 7 May 2024, reaching 34.6 °C.
What is the coldest day in Jacaltenango?
The coldest day measured in Jacaltenango between 1940 and 2025 was 9 January 1956, at 3.2 °C.
Does it snow in Jacaltenango?
Almost never: Jacaltenango sees virtually no snow, with about 0 frost days per year.
Has the climate of Jacaltenango warmed?
Yes: Jacaltenango warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Jacaltenango?
The wettest day measured in Jacaltenango between 1940 and 2025 was 30 October 1975, with 136 mm of rain in 24 hours.
What was the windiest day in Jacaltenango?
The windiest day measured in Jacaltenango between 1940 and 2025 was 16 March 1983, with winds reaching 19.0 km/h.
What is the warmest month in Jacaltenango?
The warmest month in Jacaltenango is May (19.5 °C on average); the coldest is January (15.7 °C).
How much does it rain in Jacaltenango?
Jacaltenango receives on average 1,735 mm of precipitation per year, spread over about 177 rainy days.
Is it sunny in Jacaltenango?
Jacaltenango gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in Jacaltenango?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Jacaltenango.
What was the most extreme apparent temperature in Jacaltenango?
In Jacaltenango, between 1940 and 2025, the highest apparent temperature reached 35.2 °C on 7 May 2024, and the lowest was 0.0 °C on 9 January 1956.
Compare Jacaltenango with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Jacaltenango