September Weather in Plymouth

Last updated: March 2, 2024

The weather in Plymouth, United Kingdom, during September is characterized by an average temperature of 15°C (60°F). Highs can soar to 19°C (67°F), while lows may dip to 11°C (52°F). Typically, the humidity level in Plymouth throughout September hovers around 79%.

11°C (52°F)

Minimum temperature

15°C (60°F)

Average temperature

19°C (67°F)

Maximum temperature

79%

Humidity

Precipitation and Sunshine hours

In September, Plymouth averages 73 mm (2.9 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 12 hours 33 minutes of daylight, with the sun shining for approximately 11 hours 0 minutes each day. Additionally, there is a 35% probability of sunny days during this period.

73 mm (2.9 inches)

Precipitation

12 rainy days

Rainy days

11 hours 0 minutes

Sunshine hours

35%

Chance of sun

UV Index

In September, the UV Index in Plymouth reaches a maximum of 6, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 30 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 1 2 3 4 5 5 5 4 3 2 1 1
Exposure Low Moderate Low
Time to burn 45 min 30 min 45 min

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