Caernarfon weather in September 2024

Expect 16°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Caernarfon in September. Check more long-term weather averages for Caernarfon in September before you book your next holiday to Wales in 2024/2025.

16
16°C max day temperature
4
4 hours of sunshine per day
16
16 days with some rainfall
10
10°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
141
141 mm of monthly rainfall
4
4 (Moderate) UV index
15
15°C sea temperature

More about Caernarfon

Caernarfon by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Wales

Spabreaks.com: Buy spa vouchers & gifts

Sale

Treat a loved one to a special gift of a spa break
Choose between gift package voucher or spa voucher
Alternatively a monetary voucher allows them to pick

Go to Spabreaks.com deal >>

View all Spabreaks.com offers

The September weather guide for Wales (Caernarfon) shows long term 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.

Metric (°C / mm) | Imperial (°F / inches)

More about Wales

How warm is it in Caernarfon in September?

Daytime temperatures usually reach 16°C in Caernarfon in September, falling to 10°C at night.

How sunny is it in Caernarfon in September?

There are normally 4 hours of bright sunshine each day in Caernarfon in September - that's 32% of daylight hours.

How warm is the sea around Caernarfon in September?

The average sea temperature around Caernarfon in September is 15°C.

Does it rain in Caernarfon in September?

There are usually 16 days with some rain in Caernarfon in September and the average monthly rainfall is 141mm.

Caernarfon September sunrise & sunset times

Browse the sunrise and sunset times for Caernarfon in September 2024. Select a month to view Caernarfon sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Sunday, 1st September 2024	06:28	20:05
Sunday, 15th September 2024	06:52	19:32
Monday, 30th September 2024	07:17	18:55

Be inspired

Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers

We promise not to share your details

Popular travel offers

Wales - quick facts
Time difference	UK +0 hours
Language(s)	English
Currency	Pound Sterling
Electricity	G plug (230V)
Driving side	Left
Why visit?	Culture Nature
Tourist info	Visit Wales