Sea temperature and swimming season in Northern Mariana Islands
When the sea is warm enough to swim in 2 coastal cities in Northern Mariana Islands.
| City | Warmest | Coldest | Swimming season |
|---|---|---|---|
| Saipan | 30.0°C Aug | 28.0°C Mar | all year |
| San Jose Village | 30.0°C Sep | 27.9°C Mar | all year |
Knowing the temperature is only half of it. What to wear, and why cold shock is the real risk →
Season uses 19°C. Why that number, and where the data comes from