Iyo
Japan
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Iyo, Japan

The perfect water temperature of 26.3°C (79.3°F) makes Septiembre a great period for swimming and other water activities in Iyo, Japan.

Sea temperature

In Iyo, in Septiembre, the average water temperature is 26.3°C (79.3°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In Septiembre, the average length of the day is 12.4h.

How warm is the water in Septiembre in Iyo?

In Iyo, Japan, the average seawater temperature in Septiembre is 26.3°C (79.3°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in Septiembre in Iyo?

In Septiembre, the average length of the day is 12.4h.
Average sea temperature in September - Iyo, Japan
  • Average sea temperature in September: 26.3°C

The best month for swimming (with the highest average sea temperature) is August (27.2°C).
The coldest month (with the lowest average sea temperature) is February (14.7°C).

Average daylight in September - Iyo, Japan
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).