Bayaguana climate — normals and trends
Bayaguana (Dominican Republic) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.2 °C and it receives 1,066 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 July (26.5 °C on average) and the coldest is January (23.5 °C). Rainfall peaks in May.
Bayaguana averages 0 frost days, 136 hot days (≥ 30 °C) and 211 rainy days per year.
Bayaguana has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.0 °C (on 30 July 1957) and the coldest 13.8 °C (on 8 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
BayaguanaMonte Plata Province
- coords
- 18.75°, -69.64°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.2°C
Average daily high
29.4°C
Average daily low
21.9°C
Annual rainfall
1,066mm
Sunshine / day
10.9h
Mean relative humidity
82%
Average peak wind
12.9km/h
Seasonal range
3.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
136 d/yr
Rainy days (≥ 1 mm)
211 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.7 °C
Average feels-like low
25.2 °C
Average peak gust
32.1 km/h
Tropical nights (≥ 20 °C)
315 d/yr
Solar radiation
18.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.56 · 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
36.0 °C
30 July 1957
Coldest day
13.8 °C
8 January 1956
Wettest day
155 mm
23 May 1992
Windiest day
61.4 km/h
22 September 1998
Strongest gust
131.0 km/h
22 September 1998
Hottest feels-like
42.3 °C
15 September 2023
Coldest feels-like
13.6 °C
8 January 1956
Sunniest day
12.9 h
13 June 2025
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 | 28.7 °C | +0.8 °C | 29 mm | -0 mm |
| Feb | 29.2 °C | +1.0 °C | 28 mm | -5 mm |
| Mar | 30.2 °C | +1.3 °C | 32 mm | -12 mm |
| Apr | 29.8 °C | +0.4 °C | 99 mm | +15 mm |
| May | 30.3 °C | +0.8 °C | 199 mm | +54 mm |
| Jun | 31.0 °C | +0.9 °C | 66 mm | -53 mm |
| Jul | 31.3 °C | +0.7 °C | 67 mm | -47 mm |
| Aug | 32.1 °C | +1.4 °C | 59 mm | -68 mm |
| Sep | 31.2 °C | +0.9 °C | 147 mm | +18 mm |
| Oct | 30.7 °C | +0.9 °C | 250 mm | +124 mm |
| Nov | 30.2 °C | +1.2 °C | 80 mm | +3 mm |
| Dec | 28.9 °C | +0.8 °C | 23 mm | -17 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 Bayaguana?
Bayaguana has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.2 °C and it receives 1,066 mm of precipitation per year.
What is the hottest day ever recorded in Bayaguana?
The hottest day measured in Bayaguana between 1940 and 2025 was 30 July 1957, reaching 36.0 °C.
What is the coldest day in Bayaguana?
The coldest day measured in Bayaguana between 1940 and 2025 was 8 January 1956, at 13.8 °C.
Does it snow in Bayaguana?
Almost never: Bayaguana sees virtually no snow, with about 0 frost days per year.
Has the climate of Bayaguana warmed?
Yes: Bayaguana warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bayaguana?
The wettest day measured in Bayaguana between 1940 and 2025 was 23 May 1992, with 155 mm of rain in 24 hours.
What was the windiest day in Bayaguana?
The windiest day measured in Bayaguana between 1940 and 2025 was 22 September 1998, with winds reaching 61.4 km/h.
What is the warmest month in Bayaguana?
The warmest month in Bayaguana is July (26.5 °C on average); the coldest is January (23.5 °C).
How much does it rain in Bayaguana?
Bayaguana receives on average 1,066 mm of precipitation per year, spread over about 211 rainy days.
Is it sunny in Bayaguana?
Bayaguana gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.
Are there tropical nights in Bayaguana?
Yes: Bayaguana has on average 315 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bayaguana?
In Bayaguana, between 1940 and 2025, the highest apparent temperature reached 42.3 °C on 15 September 2023, and the lowest was 13.6 °C on 8 January 1956.
Compare Bayaguana with another city
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Nearby cities
The climate around Bayaguana