Seini climate — normals and trends
Seini (Romania) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.6 °C and it receives 882 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 (20.3 °C on average) and the coldest is January (-2.9 °C). Rainfall peaks in June.
Seini averages 95 frost days, 12 hot days (≥ 30 °C) and 138 rainy days per year.
Seini has warmed by +2.7 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 113 to 77 per year over the period.
The hottest day of the period reached 37.5 °C (on 23 July 2022) and the coldest -29.0 °C (on 23 January 1963).
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
SeiniMaramureş
- coords
- 47.75°, 23.28°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.6°C
Average daily high
14.1°C
Average daily low
5.5°C
Annual rainfall
882mm
Sunshine / day
8.5h
Mean relative humidity
76%
Average peak wind
12.6km/h
Seasonal range
23.2°C
Frost days (< 0 °C)
95 d/yr
Hot days (≥ 30 °C)
12 d/yr
Rainy days (≥ 1 mm)
138 d/yr
Annual snowfall
77.0 cm
Average feels-like high
12.6 °C
Average feels-like low
3.2 °C
Average peak gust
27.5 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
12.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.53 · 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
37.5 °C
23 July 2022
Coldest day
-29.0 °C
23 January 1963
Wettest day
59 mm
12 June 1974
Windiest day
38.3 km/h
5 March 1940
Strongest gust
96.5 km/h
29 October 2017
Hottest feels-like
39.1 °C
15 July 2024
Coldest feels-like
-34.2 °C
23 January 1963
Snowiest day
16.0 cm
4 January 1955
Sunniest day
15.0 h
24 May 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 | 5.1 °C | +5.0 °C | 62 mm | -1 mm |
| Feb | 4.9 °C | +1.9 °C | 19 mm | -43 mm |
| Mar | 14.1 °C | +5.2 °C | 73 mm | +11 mm |
| Apr | 17.3 °C | +1.8 °C | 38 mm | -30 mm |
| May | 17.6 °C | -2.8 °C | 109 mm | +18 mm |
| Jun | 27.7 °C | +4.1 °C | 23 mm | -80 mm |
| Jul | 27.9 °C | +2.4 °C | 116 mm | +25 mm |
| Aug | 27.9 °C | +2.3 °C | 77 mm | +6 mm |
| Sep | 23.6 °C | +2.4 °C | 103 mm | +39 mm |
| Oct | 13.6 °C | -1.6 °C | 53 mm | -8 mm |
| Nov | 10.8 °C | +2.6 °C | 63 mm | -7 mm |
| Dec | 6.0 °C | +3.7 °C | 7 mm | -71 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 Seini?
Seini has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 9.6 °C and it receives 882 mm of precipitation per year.
What is the hottest day ever recorded in Seini?
The hottest day measured in Seini between 1940 and 2025 was 23 July 2022, reaching 37.5 °C.
What is the coldest day in Seini?
The coldest day measured in Seini between 1940 and 2025 was 23 January 1963, at -29.0 °C.
Does it snow in Seini?
Yes. Seini gets on average 77.0 cm of snow per year and has around 95 frost days.
Has the climate of Seini warmed?
Yes: Seini warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Seini?
The wettest day measured in Seini between 1940 and 2025 was 12 June 1974, with 59 mm of rain in 24 hours.
What was the windiest day in Seini?
The windiest day measured in Seini between 1940 and 2025 was 5 March 1940, with winds reaching 38.3 km/h.
What is the warmest month in Seini?
The warmest month in Seini is July (20.3 °C on average); the coldest is January (-2.9 °C).
How much does it rain in Seini?
Seini receives on average 882 mm of precipitation per year, spread over about 138 rainy days.
Is it sunny in Seini?
Seini gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.
What is the biggest single-day snowfall in Seini?
The heaviest 24-hour snowfall measured in Seini between 1940 and 2025 was 4 January 1955, with 16.0 cm.
Are there tropical nights in Seini?
Yes: Seini has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Seini?
In Seini, between 1940 and 2025, the highest apparent temperature reached 39.1 °C on 15 July 2024, and the lowest was -34.2 °C on 23 January 1963.
Compare Seini with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Seini