Brooklyn is warmest in July, averaging 27° by day and 22° at night. The wettest month is July with 152 mm, and the year brings about 1415 mm in total.
Month by month
| Month | High | Low | Rain | Sea | Daylight | Good for |
|---|---|---|---|---|---|---|
| January | 5° | -2° | 124 mm | 5° | 9.4 h | Cool |
| February | 5° | -1° | 92 mm | 4° | 10.4 h | Cool |
| March | 9° | 2° | 146 mm | 5° | 11.7 h | Cool |
| April | 12° | 6° | 135 mm | 9° | 13.1 h | Mild |
| May | 17° | 12° | 84 mm | 14° | 14.3 h | Sightseeing |
| June | 23° | 17° | 69 mm | 19° | 14.9 h | Sightseeing |
| July | 27° | 22° | 152 mm | 23° | 14.6 h | Mild |
| August | 26° | 21° | 115 mm | 24° | 13.6 h | Mild |
| September | 23° | 18° | 135 mm | 22° | 12.3 h | Mild |
| October | 18° | 13° | 118 mm | 18° | 10.9 h | Mild |
| November | 13° | 6° | 99 mm | 13° | 9.7 h | Mild |
| December | 8° | 3° | 146 mm | 8° | 9.1 h | Cool |
High and low are average daily maximum and minimum, rain is typical monthly total, sea is the average surface temperature, daylight is the hours between sunrise and sunset mid-month. Climate normals from NASA POWER and NOAA MUR — averages, not promises.
When to go
Beach weather: No month in Brooklyn combines swimming warmth with dry skies.
Walking the city: May and June — highs of 17–23° and no more than 84 mm of rain a month.