Băile Herculane climate — normals and trends
Băile Herculane (Romania) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.3 °C and it receives 964 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 (17.6 °C on average) and the coldest is January (-3.9 °C). Rainfall peaks in May.
Băile Herculane averages 127 frost days, 2 hot days (≥ 30 °C) and 148 rainy days per year.
Băile Herculane has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The number of frost days there went from about 141 to 113 per year over the period.
The hottest day of the period reached 35.3 °C (on 24 July 2007) and the coldest -29.1 °C (on 25 January 2006).
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
Băile HerculaneCaraș-Severin County
- coords
- 44.88°, 22.41°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.3°C
Average daily high
11.7°C
Average daily low
3.3°C
Annual rainfall
964mm
Sunshine / day
9.0h
Mean relative humidity
81%
Average peak wind
10.6km/h
Seasonal range
21.5°C
Frost days (< 0 °C)
127 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
148 d/yr
Annual snowfall
158.9 cm
Average feels-like high
10.0 °C
Average feels-like low
0.8 °C
Average peak gust
34.9 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
13.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.44 · 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
35.3 °C
24 July 2007
Coldest day
-29.1 °C
25 January 2006
Wettest day
66 mm
7 June 1989
Windiest day
33.3 km/h
2 April 1944
Strongest gust
108.7 km/h
19 February 1946
Hottest feels-like
38.3 °C
6 July 1988
Coldest feels-like
-33.5 °C
25 January 2006
Snowiest day
30.6 cm
6 February 1969
Sunniest day
15.0 h
12 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 | 3.8 °C | +4.4 °C | 24 mm | -43 mm |
| Feb | 0.8 °C | -0.6 °C | 20 mm | -47 mm |
| Mar | 9.8 °C | +3.9 °C | 135 mm | +63 mm |
| Apr | 13.4 °C | +1.5 °C | 66 mm | -25 mm |
| May | 15.4 °C | -1.5 °C | 121 mm | +5 mm |
| Jun | 24.9 °C | +4.4 °C | 19 mm | -94 mm |
| Jul | 25.7 °C | +2.9 °C | 63 mm | -21 mm |
| Aug | 24.5 °C | +1.6 °C | 37 mm | -31 mm |
| Sep | 20.5 °C | +1.7 °C | 34 mm | -25 mm |
| Oct | 11.1 °C | -1.7 °C | 109 mm | +41 mm |
| Nov | 8.3 °C | +2.3 °C | 138 mm | +57 mm |
| Dec | 3.9 °C | +2.8 °C | 54 mm | -25 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 Băile Herculane?
Băile Herculane has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.3 °C and it receives 964 mm of precipitation per year.
What is the hottest day ever recorded in Băile Herculane?
The hottest day measured in Băile Herculane between 1940 and 2025 was 24 July 2007, reaching 35.3 °C.
What is the coldest day in Băile Herculane?
The coldest day measured in Băile Herculane between 1940 and 2025 was 25 January 2006, at -29.1 °C.
Does it snow in Băile Herculane?
Yes. Băile Herculane gets on average 158.9 cm of snow per year and has around 127 frost days.
Has the climate of Băile Herculane warmed?
Yes: Băile Herculane warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Băile Herculane?
The wettest day measured in Băile Herculane between 1940 and 2025 was 7 June 1989, with 66 mm of rain in 24 hours.
What was the windiest day in Băile Herculane?
The windiest day measured in Băile Herculane between 1940 and 2025 was 2 April 1944, with winds reaching 33.3 km/h.
What is the warmest month in Băile Herculane?
The warmest month in Băile Herculane is July (17.6 °C on average); the coldest is January (-3.9 °C).
How much does it rain in Băile Herculane?
Băile Herculane receives on average 964 mm of precipitation per year, spread over about 148 rainy days.
Is it sunny in Băile Herculane?
Băile Herculane gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.
What is the biggest single-day snowfall in Băile Herculane?
The heaviest 24-hour snowfall measured in Băile Herculane between 1940 and 2025 was 6 February 1969, with 30.6 cm.
Are there tropical nights in Băile Herculane?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Băile Herculane.
What was the most extreme apparent temperature in Băile Herculane?
In Băile Herculane, between 1940 and 2025, the highest apparent temperature reached 38.3 °C on 6 July 1988, and the lowest was -33.5 °C on 25 January 2006.
Compare Băile Herculane with another city
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Nearby cities
The climate around Băile Herculane