Necochea climate — normals and trends
Necochea (Argentina) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 14.5 °C and it receives 782 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 January (20.6 °C on average) and the coldest is July (8.7 °C). Rainfall peaks in March.
Necochea averages 0 frost days, 7 hot days (≥ 30 °C) and 102 rainy days per year.
Necochea has warmed by +0.3 °C between 1940 and 2025, or +0.03 °C per decade. This trend is statistically significant.
The hottest day of the period reached 38.9 °C (on 14 January 2022) and the coldest -1.5 °C (on 14 June 1967).
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
NecocheaBuenos Aires
- coords
- -38.55°, -58.74°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.5°C
Average daily high
18.3°C
Average daily low
11.1°C
Annual rainfall
782mm
Sunshine / day
9.7h
Mean relative humidity
73%
Average peak wind
25.3km/h
Seasonal range
11.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
7 d/yr
Rainy days (≥ 1 mm)
102 d/yr
Annual snowfall
0.0 cm
Average feels-like high
16.8 °C
Average feels-like low
8.2 °C
Average peak gust
40.4 km/h
Tropical nights (≥ 20 °C)
8 d/yr
Solar radiation
16.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.3 °C
since 1940
0.0 °C per decade · r² = 0.05 · p = 0.049
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
38.9 °C
14 January 2022
Coldest day
-1.5 °C
14 June 1967
Wettest day
92 mm
23 August 2012
Windiest day
67.0 km/h
8 June 1993
Strongest gust
119.5 km/h
19 February 1997
Hottest feels-like
38.9 °C
27 December 2015
Coldest feels-like
-7.2 °C
1 August 1991
Snowiest day
1.5 cm
1 August 1991
Sunniest day
14.3 h
6 December 1941
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 | 25.5 °C | +0.5 °C | 28 mm | -47 mm |
| Feb | 27.0 °C | +2.4 °C | 50 mm | -19 mm |
| Mar | 22.4 °C | -0.2 °C | 171 mm | +91 mm |
| Apr | 18.4 °C | -0.9 °C | 48 mm | -20 mm |
| May | 16.8 °C | +1.1 °C | 62 mm | +1 mm |
| Jun | 12.2 °C | -0.6 °C | 45 mm | -6 mm |
| Jul | 12.3 °C | +0.3 °C | 37 mm | -16 mm |
| Aug | 13.5 °C | +0.4 °C | 75 mm | +23 mm |
| Sep | 14.9 °C | +0.3 °C | 73 mm | +19 mm |
| Oct | 18.3 °C | +1.3 °C | 87 mm | +15 mm |
| Nov | 20.1 °C | -0.1 °C | 115 mm | +37 mm |
| Dec | 25.6 °C | +2.4 °C | 35 mm | -34 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 Necochea?
Necochea has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 14.5 °C and it receives 782 mm of precipitation per year.
What is the hottest day ever recorded in Necochea?
The hottest day measured in Necochea between 1940 and 2025 was 14 January 2022, reaching 38.9 °C.
What is the coldest day in Necochea?
The coldest day measured in Necochea between 1940 and 2025 was 14 June 1967, at -1.5 °C.
Does it snow in Necochea?
Almost never: Necochea sees virtually no snow, with about 0 frost days per year.
Has the climate of Necochea warmed?
Yes: Necochea warmed by +0.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Necochea?
The wettest day measured in Necochea between 1940 and 2025 was 23 August 2012, with 92 mm of rain in 24 hours.
What was the windiest day in Necochea?
The windiest day measured in Necochea between 1940 and 2025 was 8 June 1993, with winds reaching 67.0 km/h.
What is the warmest month in Necochea?
The warmest month in Necochea is January (20.6 °C on average); the coldest is July (8.7 °C).
How much does it rain in Necochea?
Necochea receives on average 782 mm of precipitation per year, spread over about 102 rainy days.
Is it sunny in Necochea?
Necochea gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.
What is the biggest single-day snowfall in Necochea?
The heaviest 24-hour snowfall measured in Necochea between 1940 and 2025 was 1 August 1991, with 1.5 cm.
Are there tropical nights in Necochea?
Yes: Necochea has on average 8 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Necochea?
In Necochea, between 1940 and 2025, the highest apparent temperature reached 38.9 °C on 27 December 2015, and the lowest was -7.2 °C on 1 August 1991.
Compare Necochea with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Necochea