Block Island Weather: September
 |
Average Day Temperature: | 70.8°F |
|
Average Night Temperature: | 67.2°F |
|
Sea Water Temperature: | 70.4°F |
|
Number of Sunny Days: | 14 days |
| Sunshine Hours: | 11.8 - 13.1 hours | |
|
Number of Rainy Days: | 3 days |
| Precipitation Totals: | 1.4 in | |
| detailed information | ||
forecast
| Block Island |
Temperature
| Block Island |
Air Temperature in September, °F
| Day Temperature | Night Temperature |
The highest day temperature in September 2024 was 73°F. The lowest night temperature was 61°F. The average values for day and night temperatures during September were 67.9°F и 65.2°F respectivly.
Block Island Water Sea Temperature in September, °F
The average sea surface temperature in September 2024 for Block Island was 68.4°F. The maximum and minimum values were 65.8°F and 70.6°F respectively.
| Sunny days | |
| Cloudy days | |
| Gloomy days |
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 1.4 in. This value is relatively stable throughout the year.
The average wind speed in September is 12.3 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 7.8 hours.
Block Island on the Weather Map
| Boston |  |
+48 |
| Chicago |  |
+60 |
| Hawaii |  |
+76 |
| Honolulu | |
+76 |
| Houston |  |
+74 |
| Las Vegas | |
+50 |
| Los Angeles | |
+52 |
| Miami | |
+76 |
| New York |  |
+54 |
| Orlando | |
+74 |
| San Diego | |
+58 |
| San Francisco | |
+50 |
| Sarasota | |
+72 |
| Tampa | |
+72 |
| Washington | |
+56 |
| 1200 |  |
46°F | NE 11 mph |
| 1500 | |
46°F | NE 17 mph |
| 1800 |  |
44°F | NE 21 mph |
| 2100 |  |
46°F | NE 24 mph |
| 0000 |  |
46°F | NE 21 mph |
| 0300 |  |
46°F | NE 21 mph |
| 0600 | |
46°F | NE 23 mph |
| 0900 | |
46°F | NE 25 mph |