Block Island Weather: September
Average Day Temperature: | 71.5°F | |
Average Night Temperature: | 67.7°F | |
Sea Water Temperature: | 70.9°F | |
Number of Sunny Days: | 15 days | |
Sunshine Hours: | 11.8 - 13.1 hours | |
Number of Rainy Days: | 3 days | |
Precipitation Totals: | 1.7 in | |
detailed information |
forecast
Block Island |
Temperature
Block Island |
Air Temperature in September, °F
The highest day temperature in September 2023 was 78°F. The lowest night temperature was 56°F. The average values for day and night temperatures during September were 70.1°F и 68.6°F respectivly.
Block Island Water Sea Temperature in September, °F
The average sea surface temperature in September 2023 for Block Island was 70.0°F. The maximum and minimum values were 64.2°F and 74.2°F respectively.
Most of the days in September are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in September, in
Precipitation total in September for Block Island is 1.7 in. It makes september one of the most rainy months of the year.
The average wind speed in September is 12.2 mph.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Block Island in September is 8.0 hours.
Boston | +44 | |
Chicago | +60 | |
Hawaii | +76 | |
Honolulu | +76 | |
Houston | +76 | |
Las Vegas | +62 | |
Los Angeles | +58 | |
Miami | +78 | |
New York | +52 | |
Orlando | +68 | |
San Diego | +58 | |
San Francisco | +52 | |
Sarasota | +70 | |
Tampa | +70 | |
Washington | +56 |
0900 | 46°F | N 15 mph |
1200 | 48°F | NE 14 mph |
1500 | 48°F | N 12 mph |
1800 | 48°F | N 10 mph |
2100 | 52°F | NE 9 mph |
0000 | 52°F | NE 9 mph |
0300 | 52°F | E 11 mph |
0600 | 54°F | E 12 mph |