Herzliya climate — normals and trends
Herzliya (Israel) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 20.6 °C and it receives 432 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 August (26.9 °C on average) and the coldest is January (14.0 °C). Rainfall peaks in January.
Herzliya averages 0 frost days, 42 hot days (≥ 30 °C) and 56 rainy days per year.
Herzliya has warmed by +1.6 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.9 °C (on 15 May 1988) and the coldest 2.7 °C (on 6 February 1950).
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
HerzliyaTel Aviv
- coords
- 32.17°, 34.83°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
20.6°C
Average daily high
23.7°C
Average daily low
18.0°C
Annual rainfall
432mm
Sunshine / day
11.2h
Mean relative humidity
69%
Average peak wind
19.1km/h
Seasonal range
12.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
42 d/yr
Rainy days (≥ 1 mm)
56 d/yr
Annual snowfall
0.0 cm
Average feels-like high
24.3 °C
Average feels-like low
18.2 °C
Average peak gust
33.8 km/h
Tropical nights (≥ 20 °C)
151 d/yr
Solar radiation
19.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.46 · 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
40.9 °C
15 May 1988
Coldest day
2.7 °C
6 February 1950
Wettest day
52 mm
8 January 2013
Windiest day
57.2 km/h
29 February 2012
Strongest gust
100.8 km/h
29 February 2012
Hottest feels-like
40.8 °C
13 August 2025
Coldest feels-like
-2.5 °C
6 February 1950
Sunniest day
13.6 h
6 July 1958
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 | 19.7 °C | +3.1 °C | 19 mm | -84 mm |
| Feb | 16.4 °C | -0.8 °C | 60 mm | -11 mm |
| Mar | 22.1 °C | +3.0 °C | 16 mm | -36 mm |
| Apr | 23.5 °C | +1.2 °C | 7 mm | -14 mm |
| May | 25.7 °C | +0.5 °C | 6 mm | +1 mm |
| Jun | 27.7 °C | +0.1 °C | 0 mm | -2 mm |
| Jul | 30.3 °C | +1.0 °C | 0 mm | -2 mm |
| Aug | 31.0 °C | +1.1 °C | 0 mm | -1 mm |
| Sep | 29.6 °C | +0.6 °C | 2 mm | -0 mm |
| Oct | 27.5 °C | +0.5 °C | 3 mm | -17 mm |
| Nov | 26.6 °C | +3.5 °C | 36 mm | -20 mm |
| Dec | 20.0 °C | +1.4 °C | 128 mm | +28 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 Herzliya?
Herzliya has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 20.6 °C and it receives 432 mm of precipitation per year.
What is the hottest day ever recorded in Herzliya?
The hottest day measured in Herzliya between 1940 and 2025 was 15 May 1988, reaching 40.9 °C.
What is the coldest day in Herzliya?
The coldest day measured in Herzliya between 1940 and 2025 was 6 February 1950, at 2.7 °C.
Does it snow in Herzliya?
Almost never: Herzliya sees virtually no snow, with about 0 frost days per year.
Has the climate of Herzliya warmed?
Yes: Herzliya warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Herzliya?
The wettest day measured in Herzliya between 1940 and 2025 was 8 January 2013, with 52 mm of rain in 24 hours.
What was the windiest day in Herzliya?
The windiest day measured in Herzliya between 1940 and 2025 was 29 February 2012, with winds reaching 57.2 km/h.
What is the warmest month in Herzliya?
The warmest month in Herzliya is August (26.9 °C on average); the coldest is January (14.0 °C).
How much does it rain in Herzliya?
Herzliya receives on average 432 mm of precipitation per year, spread over about 56 rainy days.
Is it sunny in Herzliya?
Herzliya gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.
Are there tropical nights in Herzliya?
Yes: Herzliya has on average 151 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Herzliya?
In Herzliya, between 1940 and 2025, the highest apparent temperature reached 40.8 °C on 13 August 2025, and the lowest was -2.5 °C on 6 February 1950.
Compare Herzliya with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Herzliya