Siquirres climate — normals and trends
Siquirres (Costa Rica) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 21.4 °C and it receives 3,230 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 (22.3 °C on average) and the coldest is January (19.9 °C). Rainfall peaks in October.
Siquirres averages 0 frost days, 0 hot days (≥ 30 °C) and 279 rainy days per year.
Siquirres has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.
The hottest day of the period reached 31.5 °C (on 28 April 2015) and the coldest 11.2 °C (on 28 December 1976).
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
SiquirresLimón Province
- coords
- 10.10°, -83.51°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
21.4°C
Average daily high
25.2°C
Average daily low
18.4°C
Annual rainfall
3,230mm
Sunshine / day
9.4h
Mean relative humidity
87%
Average peak wind
8.1km/h
Seasonal range
2.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
279 d/yr
Annual snowfall
0.0 cm
Average feels-like high
29.4 °C
Average feels-like low
20.2 °C
Average peak gust
25.6 km/h
Tropical nights (≥ 20 °C)
53 d/yr
Solar radiation
17.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.50 · 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
31.5 °C
28 April 2015
Coldest day
11.2 °C
28 December 1976
Wettest day
301 mm
9 November 1976
Windiest day
15.1 km/h
3 December 1974
Strongest gust
55.8 km/h
3 December 1974
Hottest feels-like
38.0 °C
28 April 2015
Coldest feels-like
10.2 °C
27 February 1944
Sunniest day
12.6 h
6 June 1940
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 | 24.5 °C | +0.7 °C | 167 mm | -34 mm |
| Feb | 24.5 °C | +0.6 °C | 96 mm | -71 mm |
| Mar | 25.3 °C | +0.7 °C | 90 mm | -38 mm |
| Apr | 24.8 °C | -0.7 °C | 277 mm | +148 mm |
| May | 26.8 °C | +0.8 °C | 134 mm | -205 mm |
| Jun | 25.8 °C | -0.2 °C | 312 mm | -7 mm |
| Jul | 26.5 °C | +0.9 °C | 182 mm | -58 mm |
| Aug | 27.0 °C | +1.1 °C | 100 mm | -115 mm |
| Sep | 26.9 °C | +0.8 °C | 270 mm | -57 mm |
| Oct | 26.5 °C | +1.0 °C | 456 mm | -34 mm |
| Nov | 25.6 °C | +0.9 °C | 266 mm | -120 mm |
| Dec | 25.2 °C | +1.0 °C | 116 mm | -175 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 Siquirres?
Siquirres has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 21.4 °C and it receives 3,230 mm of precipitation per year.
What is the hottest day ever recorded in Siquirres?
The hottest day measured in Siquirres between 1940 and 2025 was 28 April 2015, reaching 31.5 °C.
What is the coldest day in Siquirres?
The coldest day measured in Siquirres between 1940 and 2025 was 28 December 1976, at 11.2 °C.
Does it snow in Siquirres?
Almost never: Siquirres sees virtually no snow, with about 0 frost days per year.
Has the climate of Siquirres warmed?
Yes: Siquirres warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Siquirres?
The wettest day measured in Siquirres between 1940 and 2025 was 9 November 1976, with 301 mm of rain in 24 hours.
What was the windiest day in Siquirres?
The windiest day measured in Siquirres between 1940 and 2025 was 3 December 1974, with winds reaching 15.1 km/h.
What is the warmest month in Siquirres?
The warmest month in Siquirres is May (22.3 °C on average); the coldest is January (19.9 °C).
How much does it rain in Siquirres?
Siquirres receives on average 3,230 mm of precipitation per year, spread over about 279 rainy days.
Is it sunny in Siquirres?
Siquirres gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
Are there tropical nights in Siquirres?
Yes: Siquirres has on average 53 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Siquirres?
In Siquirres, between 1940 and 2025, the highest apparent temperature reached 38.0 °C on 28 April 2015, and the lowest was 10.2 °C on 27 February 1944.
Compare Siquirres with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Siquirres