Delmas climate — normals and trends
Delmas (Haiti) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 22.5 °C and it receives 1,714 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 (24.1 °C on average) and the coldest is January (20.8 °C). Rainfall peaks in May.
Delmas averages 0 frost days, 8 hot days (≥ 30 °C) and 224 rainy days per year.
Delmas 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 34.8 °C (on 12 July 2023) and the coldest 9.9 °C (on 15 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
DelmasOuest
- coords
- 18.54°, -72.30°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.5°C
Average daily high
26.9°C
Average daily low
19.0°C
Annual rainfall
1,714mm
Sunshine / day
11.2h
Mean relative humidity
81%
Average peak wind
6.3km/h
Seasonal range
3.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
8 d/yr
Rainy days (≥ 1 mm)
224 d/yr
Annual snowfall
0.0 cm
Average feels-like high
31.1 °C
Average feels-like low
21.5 °C
Average peak gust
28.0 km/h
Tropical nights (≥ 20 °C)
127 d/yr
Solar radiation
20.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.64 · 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
34.8 °C
12 July 2023
Coldest day
9.9 °C
15 January 1956
Wettest day
265 mm
22 May 1948
Windiest day
27.1 km/h
5 August 1980
Strongest gust
143.3 km/h
5 August 1980
Hottest feels-like
39.9 °C
12 July 2023
Coldest feels-like
8.6 °C
7 January 1956
Sunniest day
12.8 h
18 June 1959
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 | 27.3 °C | +1.5 °C | 10 mm | -20 mm |
| Feb | 27.9 °C | +1.8 °C | 29 mm | -21 mm |
| Mar | 27.1 °C | +0.7 °C | 93 mm | -6 mm |
| Apr | 27.5 °C | +1.0 °C | 224 mm | +35 mm |
| May | 27.8 °C | +1.0 °C | 269 mm | +4 mm |
| Jun | 29.0 °C | +1.3 °C | 80 mm | -90 mm |
| Jul | 29.3 °C | +0.9 °C | 106 mm | -34 mm |
| Aug | 29.5 °C | +1.2 °C | 135 mm | -59 mm |
| Sep | 28.4 °C | +0.8 °C | 248 mm | +26 mm |
| Oct | 27.3 °C | +0.4 °C | 289 mm | +70 mm |
| Nov | 28.1 °C | +1.8 °C | 41 mm | -57 mm |
| Dec | 27.4 °C | +1.6 °C | 26 mm | -14 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 Delmas?
Delmas has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 22.5 °C and it receives 1,714 mm of precipitation per year.
What is the hottest day ever recorded in Delmas?
The hottest day measured in Delmas between 1940 and 2025 was 12 July 2023, reaching 34.8 °C.
What is the coldest day in Delmas?
The coldest day measured in Delmas between 1940 and 2025 was 15 January 1956, at 9.9 °C.
Does it snow in Delmas?
Almost never: Delmas sees virtually no snow, with about 0 frost days per year.
Has the climate of Delmas warmed?
Yes: Delmas warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Delmas?
The wettest day measured in Delmas between 1940 and 2025 was 22 May 1948, with 265 mm of rain in 24 hours.
What was the windiest day in Delmas?
The windiest day measured in Delmas between 1940 and 2025 was 5 August 1980, with winds reaching 27.1 km/h.
What is the warmest month in Delmas?
The warmest month in Delmas is July (24.1 °C on average); the coldest is January (20.8 °C).
How much does it rain in Delmas?
Delmas receives on average 1,714 mm of precipitation per year, spread over about 224 rainy days.
Is it sunny in Delmas?
Delmas gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.
Are there tropical nights in Delmas?
Yes: Delmas has on average 127 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Delmas?
In Delmas, between 1940 and 2025, the highest apparent temperature reached 39.9 °C on 12 July 2023, and the lowest was 8.6 °C on 7 January 1956.
Compare Delmas with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Delmas