Groton Weather: September
 |
Average Day Temperature: | 74.0°F |
|
Average Night Temperature: | 62.0°F |
|
Sea Water Temperature: | 70.9°F |
|
Number of Sunny Days: | 14 days |
| Sunshine Hours: | 11.8 - 13.1 hours | |
|
Number of Rainy Days: | 3 days |
| Precipitation Totals: | 1.3 in | |
| detailed information | ||
forecast
| Groton |
Temperature
| Groton |
Air Temperature in September, °F
The highest day temperature in September 2024 was 78°F. The lowest night temperature was 53°F. The average values for day and night temperatures during September were 71.8°F и 61.1°F respectivly.
Groton Water Sea Temperature in September, °F
The average sea surface temperature in September 2024 for Groton was 68.7°F. The maximum and minimum values were 65.0°F and 71.8°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 Groton is 1.3 in. It makes september one of the least rainy months of the year.
The average wind speed in September is 7.6 mph. This value is relatively stable throughout the year.
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 Groton in September is 7.5 hours.
Groton on the Weather Map
| Boston |  |
+56 |
| Chicago | |
+64 |
| Hawaii |  |
+80 |
| Honolulu | |
+80 |
| Houston | |
+74 |
| Las Vegas |  |
+44 |
| Los Angeles | |
+62 |
| Maui | |
+74 |
| Miami | |
+84 |
| New York |  |
+62 |
| San Diego | |
+52 |
| San Francisco |  |
+56 |
| Sarasota | |
+76 |
| Tampa | |
+78 |
| Washington | |
+62 |
| 1200 |  |
66°F | NE 12 mph |
| 1500 | |
68°F | NE 12 mph |
| 1800 |  |
64°F | NE 12 mph |
| 2100 |  |
60°F | NE 13 mph |
| 0000 | |
60°F | NE 17 mph |
| 0300 | |
60°F | NE 19 mph |
| 0600 | |
60°F | NE 15 mph |
| 0900 | |
62°F | NE 16 mph |