Climate and monthly weather forecastSouth Berwick, ME
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in South Berwick, Maine, with an average temperature varying between 31.6°F (-0.2°C) and 20.7°F (-6.3°C). January, with its high-temperature average of 31.6°F (-0.2°C) and a low-temperature average of 20.7°F (-6.3°C), is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is an icy month in South Berwick, Maine, with an average temperature varying between 33.4°F (0.8°C) and 21.9°F (-5.6°C). South Berwick's average high-temperature marks an icy 33.4°F (0.8°C) with the advent of February, closely mirroring that of the preceding month. Weather in February »Weather in March
March, the first month of the spring in South Berwick, is also an icy month, with temperature in the range of an average low of 28.4°F (-2°C) and an average high of 40.1°F (4.5°C). The start of March brings a subtle rise in the average high-temperature, moving from a wintry 33.4°F (0.8°C) in February to a still icy 40.1°F (4.5°C). Weather in March »Weather in April
April in South Berwick, Maine, is a fresh spring month, with temperature in the range of an average low of 37.9°F (3.3°C) and an average high of 50.5°F (10.3°C). April's arrival sees a rise in the average high-temperature, jumping from March's cold 40.1°F (4.5°C) to a cool 50.5°F (10.3°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in South Berwick, Maine, with an average temperature varying between 47.3°F (8.5°C) and 61.2°F (16.2°C). South Berwick's weather shows a temperature rise with the arrival of May, moving from a cool 50.5°F (10.3°C) in April to a refreshing 61.2°F (16.2°C). Weather in May »Weather in June
June, the first month of the summer in South Berwick, is a pleasant month, with an average temperature fluctuating between 55.2°F (12.9°C) and 68.9°F (20.5°C). With the onset of June, South Berwick's weather sees a minor temperature rise, transitioning from a refreshing 61.2°F (16.2°C) in May to a pleasant 68.9°F (20.5°C). Weather in June »Weather in July
July in South Berwick, Maine, is a moderately hot summer month, with an average temperature ranging between min 62.2°F (16.8°C) and max 76.3°F (24.6°C). During the warmest month, July, temperatures average a high of 76.3°F (24.6°C) and a low of 62.2°F (16.8°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in South Berwick, Maine, with an average temperature varying between 75.7°F (24.3°C) and 61.3°F (16.3°C). South Berwick's weather in August, with an average high-temperature of a still warm 75.7°F (24.3°C), subtly shifts from July's 76.3°F (24.6°C). Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in South Berwick, Maine, with an average temperature ranging between max 68.9°F (20.5°C) and min 55.6°F (13.1°C). South Berwick's transition into September involves a gentle shift in temperature, receding from a warm 75.7°F (24.3°C) in August to an agreeable 68.9°F (20.5°C). Weather in September »Weather in October
October, the same as September, in South Berwick, Maine, is another mild autumn month, with temperature in the range of an average low of 46.8°F (8.2°C) and an average high of 58.1°F (14.5°C). In October, the average high-temperature goes from an agreeable 68.9°F (20.5°C) in September to a moderate 58.1°F (14.5°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in South Berwick, Maine, with an average temperature fluctuating between 36°F (2.2°C) and 46.6°F (8.1°C). In South Berwick, the beginning of November is marked by a lowered average high-temperature, shifting from October's moderate 58.1°F (14.5°C) to a frosty 46.6°F (8.1°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in South Berwick, Maine, with temperature in the range of an average high of 37°F (2.8°C) and an average low of 27.5°F (-2.5°C). The shift from November to December involves a decrease in the average high-temperature, dropping from a chilly 46.6°F (8.1°C) to a cold 37°F (2.8°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
South Berwick, ME
The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (31.6°F).
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure
South Berwick, ME
- Average pressure in January:
29.99"Hg - Average pressure in February:
29.98"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
South Berwick, ME
- Average wind speed in January:
11.3mph - Average wind speed in February:
10.9mph - Average wind speed in March:
10.4mph - Average wind speed in April:
9.3mph - Average wind speed in May:
7.8mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.4mph - Average wind speed in October:
9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
10.4mph
The windiest month (with the highest average wind speed) is January (11.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity
South Berwick, ME
The months with the highest relative humidity are June and July (80%).
The months with the lowest relative humidity are April and November (75%).
Average rainfall
South Berwick, ME
- Average rainfall in January:
1.5" - Average rainfall in February:
1.65" - Average rainfall in March:
1.89" - Average rainfall in April:
2.01" - Average rainfall in May:
1.73" - Average rainfall in June:
2.13"
- Average rainfall in July:
2.01" - Average rainfall in August:
2.01" - Average rainfall in September:
1.26" - Average rainfall in October:
2.09" - Average rainfall in November:
1.85" - Average rainfall in December:
2.13"
The wettest months (with the highest rainfall) are June and December (2.13").
The driest month (with the least rainfall) is September (1.26").
Average rainfall days
South Berwick, ME
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
6.3 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
12.6 days - Average rainfall days in May:
14.1 days - Average rainfall days in June:
14 days
- Average rainfall days in July:
14.6 days - Average rainfall days in August:
13.1 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
11.9 days - Average rainfall days in November:
8.2 days - Average rainfall days in December:
8.5 days
The month with the highest number of rainy days is July (14.6 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall
South Berwick, ME
The month with the highest snowfall is February (3.86").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
South Berwick, ME
- Average snowfall days in January:
7.4 days - Average snowfall days in February:
7.2 days - Average snowfall days in March:
5.6 days - Average snowfall days in April:
1.2 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.2 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
5.4 days
The month with the highest number of snowfall days is January (7.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
South Berwick, ME
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
4h and 54min - Average sunshine in March:
5h and 54min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 12min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 42min - Average sunshine in September:
8h and 36min - Average sunshine in October:
6h and 6min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days
South Berwick, ME
- Average sunshine days in January:
18.4 days - Average sunshine days in February:
16.4 days - Average sunshine days in March:
15.9 days - Average sunshine days in April:
15.6 days - Average sunshine days in May:
14.9 days - Average sunshine days in June:
14.6 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
18.2 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is July (14.3 days).
Average UV index
South Berwick, ME
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
South Berwick, ME
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility
South Berwick, ME
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





