When is the best time to go to South Portland
The chart above shows the best time of year to visit South Portland, United States. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.
Average temperatures in South Portland
South Portland weather by month
Please note our recommendations for when to visit South Portland are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.
January
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| -0°C | 94mm | 5.8hrs | 10.4hrs | 5°C |
South Portland's weather in January is typically cold and a little damp in nature.
Based on weather alone, this is probably a time of year to avoid going to South Portland for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
January is in the winter in South Portland and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing -1°C (31°F), whilst at night -11°C (12°F) is normal.
On average January is the driest month of the year in South Portland with around 94mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.8 hours of sunshine per day.
South Portland weather in January »
February
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 1°C | 88mm | 6.6hrs | 11.5hrs | 4°C |
February in South Portland is generally a little damp with the temperature being cold.
Although outside the main holiday season, there is still plenty of relatively acceptable weather around this time of year. This makes it an okay time to visit South Portland.
February is in the winter in South Portland and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a freezing 1°C (34°F), whilst at night -10°C (14°F) is normal.
On average February is the 2nd driest month of the year in South Portland with around 88mm 3.5 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.6 hours of sunshine per day.
South Portland weather in February »
March
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 5°C | 99mm | 7hrs | 12.8hrs | 3°C |
The weather in March in South Portland is characteristically cool and a little damp.
Based on weather alone, this is probably a time of year to avoid going to South Portland for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
March is in the spring in South Portland and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cold 6°C (42°F), whilst at night -4°C (25°F) is normal.
On average March is the 3rd driest month of the year in South Portland with around 99mm 3.9 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
South Portland weather in March »
April
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 10°C | 105mm | 7.6hrs | 14.4hrs | 5°C |
South Portland's weather in April is typically cool and damp in nature.
Based on weather alone, this is probably a time of year to avoid going to South Portland for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
April is in the spring in South Portland and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 12°C (53°F), whilst at night 1°C (35°F) is normal.
On average April is the 4th driest month of the year in South Portland with around 105mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.6 hours of sunshine per day.
South Portland weather in April »
May
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 16°C | 92mm | 8.4hrs | 15.7hrs | 8°C |
May is a a little damp month in South Portland and the temperature is generally mild.
It is perhaps a good month to visit South Portland, with some very good weather at this time of year.
May is in the spring in South Portland and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 18°C (64°F), whilst at night 7°C (44°F) is normal.
On average May is the 5th driest month of the year in South Portland with around 92mm 3.6 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.4 hours of sunshine per day.
South Portland weather in May »
June
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 21°C | 85mm | 9.2hrs | 10.4hrs | 13°C |
The climate in South Portland during June can be summarized as mild and a little damp.
It is perhaps the perfect month to visit South Portland, with some very good weather at this time of year.
June is in the summer in South Portland and is typically the 6th coldest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 11°C (53°F) is normal.
On average June is the 6th driest month of the year in South Portland with around 85mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.2 hours of sunshine per day.
South Portland weather in June »
July
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 24°C | 78mm | 9.7hrs | 11.5hrs | 17°C |
July in South Portland is generally reasonably dry with the temperature being warm.
It is perhaps the perfect month to visit South Portland, with some particularly good weather at this time of year.
July is in the summer in South Portland and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 15°C (59°F) is normal.
On average July is the 6th wettest month of the year in South Portland with around 78mm 3.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.7 hours of sunshine per day.
South Portland weather in July »
August
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 23°C | 75mm | 9.2hrs | 12.8hrs | 17°C |
The weather in August in South Portland is characteristically warm and reasonably dry.
It is perhaps the perfect month to visit South Portland, with some inordinately good weather at this time of year.
August is in the summer in South Portland and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 25°C (78°F), whilst at night 14°C (58°F) is normal.
On average August is the 5th wettest month of the year in South Portland with around 75mm 3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.2 hours of sunshine per day.
South Portland weather in August »
September
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 19°C | 81mm | 8.1hrs | 14.4hrs | 15°C |
South Portland's weather in September is typically mild and a little damp in nature.
It is perhaps the perfect month to visit South Portland, with some particularly good weather at this time of year.
September is in the fall / autumn in South Portland and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 21°C (70°F), whilst at night 10°C (50°F) is normal.
On average September is the 4th wettest month of the year in South Portland with around 81mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.1 hours of sunshine per day.
South Portland weather in September »
October
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 14°C | 100mm | 6.8hrs | 15.7hrs | 12°C |
October is a damp month in South Portland and the temperature is generally cool.
Although outside the main holiday season, there is still plenty of quite acceptable weather around this time of year. This makes it an okay time to visit South Portland.
October is in the fall / autumn in South Portland and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a cool 15°C (59°F), whilst at night 4°C (39°F) is normal.
On average October is the 3rd wettest month of the year in South Portland with around 100mm 3.9 inches of rain making it a damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.8 hours of sunshine per day.
South Portland weather in October »
November
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 8°C | 131mm | 5.1hrs | 10.4hrs | 9°C |
The weather in November in South Portland is characteristically cool and wet.
Based on weather alone, this is probably a time of year to avoid going to South Portland for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
November is in the fall / autumn in South Portland and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cold 9°C (48°F), whilst at night -1°C (31°F) is normal.
On average November is the 2nd wettest month of the year in South Portland with around 131mm 5.1 inches of rain making it a wet time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.1 hours of sunshine per day.
South Portland weather in November »
December
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 2°C | 117mm | 5hrs | 11.5hrs | 7°C |
December in South Portland is generally damp with the temperature being cold.
Based on weather alone, this is probably a time of year to avoid going to South Portland for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
December is in the winter in South Portland and is typically the warmest month of the year. Daytime maximum temperatures average around a freezing 2°C (36°F), whilst at night -8°C (18°F) is normal.
On average December is the wettest month of the year in South Portland with around 117mm 4.6 inches of rain making it a damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 hours of sunshine per day.
Other monthly averages
South Portland weather stats
| Hottest month: | July | 25.9°C 78.6°F |
|---|---|---|
| Driest month: | August | 75mm 3ins |
| Sunniest month: | August | 9.2hrs |
| Coldest month: | January | -0.8°C 30.6°F |
| Wettest month: | November | 131mm 5.2ins |
| Warmest sea: | August | 17.5°C 63.5°F |
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