April weather forecast and climate
Shelter Island Heights, NY

Average sea temperature in April - Shelter Island Heights, NY
  • Average sea temperature in April: 44.4°F

The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).

Average daylight in April - Shelter Island Heights, NY
  • Average daylight in April: 13.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).

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