Port Isaac Weather in September

During September, Port Isaac experiences pleasant daytime temperatures of 18°C (64°F) and cooler nights around 13°C (55°F). As part of the summer season, expect quite a bit of rainfall. Around 79 mm (3.1 in) is typical.

Rainfall in Port Isaac in September

On average, there are about 15 days with rain during this month, averaging 79 mm (3.1 in). Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.

Temperature in Port Isaac in September

Daytime temperatures in Port Isaac reach 18°C (64°F) in September, dropping to 13°C (55°F) at night. September is part of summer. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 13°C (55°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Port Isaac in September

With about 165 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

For Port Isaac itself, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.