Normal weather on 18 September in Harpswell
The weather on 18 September in Harpswell has an average temperature of about 19°C during the day. The maximum temperature can reach up to 23°C, while the minimum temperature can be 15°C.
On average, 2,1 mm of rain falls in Harpswell on 18 September. The wind speed is 4 Beaufort and mainly comes from South.
18 September Averages for Harpswell
 Average temperature | 19°C |
 Highest daytime temperature | 23°C |
| Lowest daytime temperature | 15°C |
 Total rainfall | 2,1 mm |
| Rainy days | 1 day |
Temperature on 18 September in Harpswell per Year
This graph shows the measured temperature on 18 September in Harpswell per year, measured in degrees Celsius, over the past years.
Precipitation on 18 September in Harpswell per Year
This graph shows the total measured precipitation in millimeters on 18 September in Harpswell per year over the past years.
Average weather in Harpswell per month
Click on a month below to see in detail how the weather typically is in Harpswell and what to expect. Based on the historical weather data of Harpswell, you can view the average temperature, precipitation, wind, and UV index for each day of the month.