Boaco climate — normals and trends
Boaco (Nicaragua) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.3 °C and it receives 1,129 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 (26.0 °C on average) and the coldest is January (23.0 °C). Rainfall peaks in September.
Boaco averages 0 frost days, 96 hot days (≥ 30 °C) and 164 rainy days per year.
Boaco 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 37.6 °C (on 18 April 1988) and the coldest 13.7 °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
BoacoBoaco Department
- coords
- 12.47°, -85.66°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.3°C
Average daily high
28.9°C
Average daily low
20.8°C
Annual rainfall
1,129mm
Sunshine / day
10.6h
Mean relative humidity
78%
Average peak wind
19.5km/h
Seasonal range
3.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
96 d/yr
Rainy days (≥ 1 mm)
164 d/yr
Annual snowfall
0.0 cm
Average feels-like high
31.0 °C
Average feels-like low
22.6 °C
Average peak gust
49.1 km/h
Tropical nights (≥ 20 °C)
280 d/yr
Solar radiation
19.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.68 · 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
37.6 °C
18 April 1988
Coldest day
13.7 °C
6 December 1945
Wettest day
166 mm
23 October 1988
Windiest day
42.6 km/h
28 January 1988
Strongest gust
100.1 km/h
28 January 1988
Hottest feels-like
41.1 °C
20 May 1988
Coldest feels-like
11.6 °C
28 February 1952
Sunniest day
12.7 h
29 May 1989
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 | 28.2 °C | +0.7 °C | 13 mm | +6 mm |
| Feb | 28.9 °C | +0.3 °C | 16 mm | +11 mm |
| Mar | 31.4 °C | +1.1 °C | 1 mm | -6 mm |
| Apr | 31.4 °C | -0.2 °C | 7 mm | -20 mm |
| May | 32.1 °C | +1.2 °C | 44 mm | -117 mm |
| Jun | 28.3 °C | -0.4 °C | 386 mm | +183 mm |
| Jul | 28.6 °C | +0.6 °C | 69 mm | -34 mm |
| Aug | 29.4 °C | +0.8 °C | 63 mm | -64 mm |
| Sep | 30.0 °C | +1.2 °C | 182 mm | -23 mm |
| Oct | 29.6 °C | +1.3 °C | 319 mm | +115 mm |
| Nov | 28.1 °C | +0.3 °C | 61 mm | -4 mm |
| Dec | 27.9 °C | +0.6 °C | 20 mm | +5 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 Boaco?
Boaco has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.3 °C and it receives 1,129 mm of precipitation per year.
What is the hottest day ever recorded in Boaco?
The hottest day measured in Boaco between 1940 and 2025 was 18 April 1988, reaching 37.6 °C.
What is the coldest day in Boaco?
The coldest day measured in Boaco between 1940 and 2025 was 6 December 1945, at 13.7 °C.
Does it snow in Boaco?
Almost never: Boaco sees virtually no snow, with about 0 frost days per year.
Has the climate of Boaco warmed?
Yes: Boaco warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Boaco?
The wettest day measured in Boaco between 1940 and 2025 was 23 October 1988, with 166 mm of rain in 24 hours.
What was the windiest day in Boaco?
The windiest day measured in Boaco between 1940 and 2025 was 28 January 1988, with winds reaching 42.6 km/h.
What is the warmest month in Boaco?
The warmest month in Boaco is April (26.0 °C on average); the coldest is January (23.0 °C).
How much does it rain in Boaco?
Boaco receives on average 1,129 mm of precipitation per year, spread over about 164 rainy days.
Is it sunny in Boaco?
Boaco gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
Are there tropical nights in Boaco?
Yes: Boaco has on average 280 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Boaco?
In Boaco, between 1940 and 2025, the highest apparent temperature reached 41.1 °C on 20 May 1988, and the lowest was 11.6 °C on 28 February 1952.
Compare Boaco with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Boaco