Monthly weather forecast and Climate
Rockland, ME US

Warmest months (with highest average high temperature) are July and August (76°F).
Month with lowest average high temperature is January (30°F).

Month with highest average low temperature is July (59°F).
Coldest month (with lowest average low temperature) is January (10°F).

Wettest month (with highest rainfall) is November (5.7").
Driest month (with lowest rainfall) is August (3.3").

Month with highest number of rainy days is December (13 days).
Month with lowest number of rainy days is September (9 days).

Best month for swimming (with highest average sea temperature) is August (59°F).
Coldest month (with lowest average sea temperature) is March (39°F).

Months with longest days are May, June and July (Average daylight: 15).
Months with shortest days are January and December (Average daylight: 9).

Months with most sunshine are June, July and August (Average sunshine: 8).
Months with least sunshine are January, November and December (Average sunshine: 4).

Months with highest UV index are June and July (UV index 8).
Months with lowest UV index are January and December (UV index 1).