April Weather in South Portland

Last updated: March 2, 2024

The weather in South Portland, United States, during April is characterized by an average temperature of 6°C (43°F). Highs can soar to 14°C (58°F), while lows may dip to -1°C (31°F). Typically, the humidity level in South Portland throughout April hovers around 80%.

-1°C (31°F)

Minimum temperature

6°C (43°F)

Average temperature

14°C (58°F)

Maximum temperature

80%

Humidity

Precipitation and Sunshine hours

In April, South Portland averages 149 mm (5.9 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 13 hours 27 minutes of daylight, with the sun shining for approximately 8 hours 7 minutes each day. Additionally, there is a 36% probability of sunny days during this period.

149 mm (5.9 inches)

Precipitation

13 rainy days

Rainy days

8 hours 7 minutes

Sunshine hours

36%

Chance of sun

UV Index

In April, the UV Index in South Portland reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 25 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 2 3 5 6 7 7 7 5 3 2 1 1
Exposure Low Moderate High Moderate Low
Time to burn 45 min 30 min 25 min 30 min 45 min

Compare South Portland's Climate with Cities Worldwide