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

May weather forecast and climate
Bosham, United Kingdom

Sea temperature

In Bosham, United Kingdom, in May, the average water temperature is 11.5°C (52.7°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.


The average length of the day in May in Bosham is 15.5h.

How cold is the water in May in Bosham?

In Bosham, United Kingdom, the average seawater temperature in May is 11.5°C (52.7°F). Swimming in 11.5°C (52.7°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the average length of the day in May in Bosham?

The average length of the day in May in Bosham, United Kingdom, is 15.5h.
Average sea temperature in May - Bosham, United Kingdom
  • Average sea temperature in May: 11.5°C

The best month for swimming (with the highest average sea temperature) is September (17.3°C).
The coldest month (with the lowest average sea temperature) is March (8.4°C).

Average daylight in May - Bosham, United Kingdom
  • Average daylight in May: 15.5h

The month with the longest days is June (Average daylight: 16.4h).
The month with shortest days is December (Average daylight: 8h).