Poptún climate — normals and trends
Poptún (Guatemala) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 23.8 °C and it receives 1,629 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 (26.1 °C on average) and the coldest is January (21.0 °C). Rainfall peaks in September.
Poptún averages 0 frost days, 126 hot days (≥ 30 °C) and 236 rainy days per year.
Poptún has warmed by +2.5 °C between 1940 and 2025, or +0.30 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.2 °C (on 28 April 2015) and the coldest 8.6 °C (on 6 December 1945).
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
PoptúnPetén
- coords
- 16.33°, -89.42°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.8°C
Average daily high
28.6°C
Average daily low
20.3°C
Annual rainfall
1,629mm
Sunshine / day
9.7h
Mean relative humidity
85%
Average peak wind
10.9km/h
Seasonal range
5.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
126 d/yr
Rainy days (≥ 1 mm)
236 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.7 °C
Average feels-like low
23.2 °C
Average peak gust
29.0 km/h
Tropical nights (≥ 20 °C)
231 d/yr
Solar radiation
16.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.81 · 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
40.2 °C
28 April 2015
Coldest day
8.6 °C
6 December 1945
Wettest day
205 mm
31 October 1961
Windiest day
47.9 km/h
31 October 1961
Strongest gust
119.5 km/h
31 October 1961
Hottest feels-like
45.0 °C
28 April 2015
Coldest feels-like
7.4 °C
6 December 1945
Sunniest day
12.4 h
29 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 26.4 °C | +1.2 °C | 150 mm | +69 mm |
| Feb | 28.2 °C | +1.5 °C | 75 mm | +21 mm |
| Mar | 31.0 °C | +1.8 °C | 36 mm | -23 mm |
| Apr | 31.0 °C | -0.2 °C | 38 mm | -30 mm |
| May | 35.6 °C | +3.9 °C | 22 mm | -109 mm |
| Jun | 32.3 °C | +2.0 °C | 170 mm | -26 mm |
| Jul | 31.9 °C | +2.3 °C | 108 mm | -62 mm |
| Aug | 32.9 °C | +2.9 °C | 115 mm | -51 mm |
| Sep | 31.3 °C | +1.8 °C | 254 mm | +23 mm |
| Oct | 29.8 °C | +1.9 °C | 240 mm | +12 mm |
| Nov | 26.8 °C | +0.5 °C | 155 mm | +7 mm |
| Dec | 26.8 °C | +1.5 °C | 204 mm | +104 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 Poptún?
Poptún has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 23.8 °C and it receives 1,629 mm of precipitation per year.
What is the hottest day ever recorded in Poptún?
The hottest day measured in Poptún between 1940 and 2025 was 28 April 2015, reaching 40.2 °C.
What is the coldest day in Poptún?
The coldest day measured in Poptún between 1940 and 2025 was 6 December 1945, at 8.6 °C.
Does it snow in Poptún?
Almost never: Poptún sees virtually no snow, with about 0 frost days per year.
Has the climate of Poptún warmed?
Yes: Poptún warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Poptún?
The wettest day measured in Poptún between 1940 and 2025 was 31 October 1961, with 205 mm of rain in 24 hours.
What was the windiest day in Poptún?
The windiest day measured in Poptún between 1940 and 2025 was 31 October 1961, with winds reaching 47.9 km/h.
What is the warmest month in Poptún?
The warmest month in Poptún is May (26.1 °C on average); the coldest is January (21.0 °C).
How much does it rain in Poptún?
Poptún receives on average 1,629 mm of precipitation per year, spread over about 236 rainy days.
Is it sunny in Poptún?
Poptún gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.
Are there tropical nights in Poptún?
Yes: Poptún has on average 231 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Poptún?
In Poptún, between 1940 and 2025, the highest apparent temperature reached 45.0 °C on 28 April 2015, and the lowest was 7.4 °C on 6 December 1945.
Compare Poptún with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Poptún