Discover Block Island, RI
Block Island is a popular island to visit 9 miles south of the mainland of Rhode Island. Ferry transportation provides year round ferry service to & from Block Island. Visitors looking for fun outdoor activities and a relaxing beach getaway will find it here in Block Island, Rhode Island.
View live webcams in Block Island, check the current weather conditions, and see what’s happening around town. Planning to visit to Block Island? Use our local map of the area to discover nearby coastal spots and stay up-to-date with the local weather forecast before you go.
Block Island, Rhode Island Average Temperatures
Use this weather chart as a guide to view the average air and ocean temperatures in Block Island, RI.
The average air temperature in the summer varies between 75-80 degrees.
The average ocean temperature in the summer varies between 60-70 degrees.
| Average High | Average Low | Average Ocean Temp | |
|---|---|---|---|
| January | 38 | 23 | 37 |
| February | 40 | 25 | 36 |
| March | 46 | 31 | 37 |
| April | 55 | 40 | 47 |
| May | 64 | 48 | 56 |
| June | 73 | 58 | 62 |
| July | 79 | 64 | 68 |
| August | 78 | 64 | 70 |
| September | 73 | 59 | 67 |
| October | 62 | 48 | 60 |
| November | 53 | 39 | 52 |
| December | 44 | 29 | 44 |
Average high, low and ocean temperatures in Block Island. Sources: Accuweather, Weather.com, NOAA Climate.gov.
