Portstewart weather in October 2025

Q: How warm is it in Portstewart in October?

Daytime temperatures usually reach 13°C in Portstewart in October, falling to 7°C at night.

Q: How sunny is it in Portstewart in October?

There are normally 2 hours of bright sunshine each day in Portstewart in October - that's 23% of daylight hours.

Q: How warm is the sea around Portstewart in October?

The average sea temperature around Portstewart in October is 13°C.

Q: Does it rain in Portstewart in October?

There are usually 22 days with some rain in Portstewart in October and the average monthly rainfall is 124mm.

Expect 55°F daytime maximum temperatures in the shade with on average 2 hours of sunshine per day in Portstewart in October. Check more long-term weather averages for Portstewart in October before you book your next holiday to Northern Ireland in 2025/2026.

55
55°F max day temperature
2
2 hours of sunshine per day
22
22 days with some rainfall
45
45°F min night temperature
10
10 hours of daylight per day
0
No heat & humidity
4.9
4.9 inches of monthly rainfall
2
2 (Low) UV index
55
55°F sea temperature

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The October weather guide for Northern Ireland (Portstewart) 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) | Imperial (°F)

More about the UK

How warm is it in Portstewart in October?

Daytime temperatures usually reach 55°F in Portstewart in October, falling to 45°F at night.

How sunny is it in Portstewart in October?

There are normally 2 hours of bright sunshine each day in Portstewart in October - that's 23% of daylight hours.

How warm is the sea around Portstewart in October?

The average sea temperature around Portstewart in October is 55°F.

Does it rain in Portstewart in October?

There are usually 22 days with some rain in Portstewart in October and the average monthly rainfall is 4.9 inches.

Portstewart October sunrise & sunset times

Browse the sunrise and sunset times for Portstewart in October 2025. Select a month to view Portstewart sunrise and sunset times for the next 12 months.

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