Penzance weather in August 2025

Q: How hot is it in Penzance in August?

Daytime temperatures usually reach 19°C in Penzance in August, falling to 13°C at night.

Q: How sunny is it in Penzance in August?

There are normally 6 hours of bright sunshine each day in Penzance in August - that's 44% of daylight hours.

Q: How warm is the sea around Penzance in August?

The average sea temperature around Penzance in August is 16°C.

Q: Does it rain in Penzance in August?

There are usually 15 days with some rain in Penzance in August and the average monthly rainfall is 78mm.

Expect daytime maximum temperatures of 19°C in Penzance in August based on long-term weather averages. There are 6 hours of sunshine per day on average with 15 days with some rainfall and typically 78 mm of rainfall in the month.

19
19°C max day temperature
6
6 hours of sunshine per day
15
15 days with some rainfall
13
13°C min night temperature
14
14 hours of daylight per day
0
No heat & humidity
78
78 mm of monthly rainfall
6
6 (High) UV index
16
16°C sea temperature

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The August weather guide for England (Penzance) 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)