Gillingham climate — normals and trends
Gillingham (United Kingdom) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.0 °C and it receives 728 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 (16.4 °C on average) and the coldest is January (4.4 °C). Rainfall peaks in November.
Gillingham averages 38 frost days, 0 hot days (≥ 30 °C) and 132 rainy days per year.
Gillingham has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The number of frost days there went from about 51 to 25 per year over the period.
The hottest day of the period reached 32.9 °C (on 18 July 2022) and the coldest -16.6 °C (on 21 January 1940).
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
GillinghamEngland
- coords
- 51.04°, -2.28°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.0°C
Average daily high
13.3°C
Average daily low
6.7°C
Annual rainfall
728mm
Sunshine / day
7.7h
Mean relative humidity
82%
Average peak wind
21.2km/h
Seasonal range
12.0°C
Frost days (< 0 °C)
38 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
132 d/yr
Annual snowfall
10.7 cm
Average feels-like high
10.6 °C
Average feels-like low
3.7 °C
Average peak gust
41.0 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.42 · 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
32.9 °C
18 July 2022
Coldest day
-16.6 °C
21 January 1940
Wettest day
44 mm
27 December 1979
Windiest day
68.6 km/h
25 January 1990
Strongest gust
133.2 km/h
25 January 1990
Hottest feels-like
35.4 °C
28 July 1947
Coldest feels-like
-21.9 °C
21 January 1940
Snowiest day
14.8 cm
19 February 1978
Sunniest day
16.0 h
7 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 | 6.9 °C | +0.1 °C | 104 mm | +40 mm |
| Feb | 7.9 °C | +0.7 °C | 59 mm | +6 mm |
| Mar | 12.1 °C | +2.5 °C | 10 mm | -47 mm |
| Apr | 16.1 °C | +3.9 °C | 45 mm | -11 mm |
| May | 18.7 °C | +3.2 °C | 28 mm | -37 mm |
| Jun | 21.2 °C | +2.8 °C | 70 mm | +11 mm |
| Jul | 23.3 °C | +3.0 °C | 47 mm | -7 mm |
| Aug | 22.4 °C | +2.4 °C | 36 mm | -26 mm |
| Sep | 17.7 °C | 0.0 °C | 77 mm | +20 mm |
| Oct | 14.5 °C | +0.5 °C | 64 mm | -3 mm |
| Nov | 11.6 °C | +1.7 °C | 99 mm | +32 mm |
| Dec | 9.6 °C | +1.9 °C | 93 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 Gillingham?
Gillingham has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.0 °C and it receives 728 mm of precipitation per year.
What is the hottest day ever recorded in Gillingham?
The hottest day measured in Gillingham between 1940 and 2025 was 18 July 2022, reaching 32.9 °C.
What is the coldest day in Gillingham?
The coldest day measured in Gillingham between 1940 and 2025 was 21 January 1940, at -16.6 °C.
Does it snow in Gillingham?
Yes. Gillingham gets on average 10.7 cm of snow per year and has around 38 frost days.
Has the climate of Gillingham warmed?
Yes: Gillingham warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Gillingham?
The wettest day measured in Gillingham between 1940 and 2025 was 27 December 1979, with 44 mm of rain in 24 hours.
What was the windiest day in Gillingham?
The windiest day measured in Gillingham between 1940 and 2025 was 25 January 1990, with winds reaching 68.6 km/h.
What is the warmest month in Gillingham?
The warmest month in Gillingham is July (16.4 °C on average); the coldest is January (4.4 °C).
How much does it rain in Gillingham?
Gillingham receives on average 728 mm of precipitation per year, spread over about 132 rainy days.
Is it sunny in Gillingham?
Gillingham gets on average 7.7 hours of sunshine per day, roughly 2,811 hours per year over 1940-2025.
What is the biggest single-day snowfall in Gillingham?
The heaviest 24-hour snowfall measured in Gillingham between 1940 and 2025 was 19 February 1978, with 14.8 cm.
Are there tropical nights in Gillingham?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Gillingham.
What was the most extreme apparent temperature in Gillingham?
In Gillingham, between 1940 and 2025, the highest apparent temperature reached 35.4 °C on 28 July 1947, and the lowest was -21.9 °C on 21 January 1940.
Compare Gillingham with another city
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Nearby cities
The climate around Gillingham