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Caernarfon weather by month
Check out Caernarfon weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Caernarfon (°C)
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Max temperature (daytime) | 7 |
7 |
8 |
11 |
14 |
17 |
18 |
18 |
16 |
14 |
10 |
8 |
Min temperature (night-time) | 2 |
2 |
3 |
4 |
7 |
9 |
11 |
11 |
10 |
8 |
4 |
3 |
Heat & Humidity | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Sea temperature | 8 |
7 |
7 |
8 |
10 |
13 |
15 |
16 |
15 |
14 |
12 |
10 |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & Daylight in Caernarfon
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Daily hours of sunshine | ||||||||||||
Daily hours of daylight | 8 |
10 |
12 |
14 |
16 |
17 |
16 |
15 |
13 |
11 |
9 |
8 |
UV Index (Maximum) | 0 |
1 |
2 |
4 |
5 |
6 |
6 |
5 |
4 |
2 |
1 |
0 |
Rainfall in Caernarfon
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Number of days with some rain | 20 |
16 |
18 |
14 |
15 |
14 |
14 |
15 |
16 |
19 |
20 |
20 |
Average monthly rainfall (mm) | 164 |
111 |
128 |
92 |
90 |
94 |
99 |
131 |
141 |
174 |
183 |
183 |
More about Caernarfon
Caernarfon by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Wales
The climate guide for Wales (Caernarfon) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
What's the climate like in Caernarfon?
Caernarfon has a temperate climate with warm summers and some rainfall in all months.
Metric (°C / mm) | Imperial (°F / inches)
Tropical storm risk: Caernarfon hurricane season
More about Wales
Compare Caernarfon with the USA
Below the Caernarfon chart shows average maximum daytime temperature for Caernarfon, Gwynedd, Wales and the USA (Washington).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
Compare more Caernarfon weather >>
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