Porthleven Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Porthleven.
Climate overview of Porthleven
Porthleven, Cornwall, United Kingdom, experiences moderate temperature changes through the seasons. August is the warmest month with daytime highs of 20°C (68°F), while February is the coolest at 11°C (52°F).
With around 953 mm (38 in) of annual rainfall, the city has moderate precipitation levels. November is the wettest month and June the driest. The most sunshine falls in May, with an average of 7.4 hours of daily sunshine.
Porthleven Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Porthleven - and find the best time to visit.
Monthly Temperature in Porthleven
The climate in Porthleven experiences moderate temperature changes, with mild shifts between seasons. Typically, average maximum daytime temperatures range from a pleasant 20°C (68°F) in August to a chilly 11°C (52°F) in the coolest month, February.
Nights vary from 15°C (59°F) in August to around 6°C (43°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Porthleven
Generally, Porthleven has a moderate amount of precipitation, averaging 953 mm (38 in) of rainfall annually. Porthleven offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month November (105 mm (4.1 in)) and the driest month June (62 mm (2.4 in)) is not too significant. For more details, please visit our Porthleven Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Porthleven
For those who appreciate different seasons, Porthleven serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 7.4 hours of sunshine daily, and embrace the darker days in December, offering only 2.2 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Porthleven
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: August
- Warmest weather: July, August and September
- Most sunshine: May and June
Frequently asked questions about the climate in Porthleven
What is the best time to visit Porthleven?
August typically offers the most optimal weather in Porthleven. In contrast, November and December tend to have less optimal conditions.
What temperatures can I expect in Porthleven?
Daytime highs range from 11°C (52°F) in February to 20°C (68°F) in August. Nighttime lows range from 6°C (43°F) to 15°C (59°F).
How much rain does Porthleven get?
Annual rainfall is around 953 mm (38 in). November is the wettest month with 105 mm (4.1 in), while June is the driest with 62 mm (2.4 in).
How sunny is Porthleven?
Porthleven receives around 1,753 hours of sunshine per year. May is the sunniest month with 222 hours, while December is the cloudiest with just 65 hours.
Porthleven 3-Day Forecast
Porthleven on the map
Porthleven is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
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