Alnmouth
United Kingdom
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Alnmouth, United Kingdom

Sea temperature

In Alnmouth, United Kingdom, in September, the average water temperature is 14.6°C (58.3°F).
Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

Daylight

In September, the average length of the day is 12.7h.

How cold is the water in September in Alnmouth?

In September, the average sea temperature in Alnmouth is 14.6°C (58.3°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

How many hours of daylight does Alnmouth have in September?

The average length of the day in September in Alnmouth, United Kingdom, is 12.7h.
Average sea temperature in September - Alnmouth, United Kingdom
  • Average sea temperature in September: 14.6°C

The best month for swimming (with the highest average sea temperature) is August (15.3°C).
The coldest month (with the lowest average sea temperature) is March (6.7°C).

Average daylight in September - Alnmouth, United Kingdom
  • Average daylight in September: 12.7h

The month with the longest days is June (Average daylight: 17.4h).
The month with shortest days is December (Average daylight: 7.2h).