May Weather in Port Saint John

Last updated: March 2, 2024

The weather in Port Saint John, United States, during May is characterized by an average temperature of 25°C (77°F). Highs can soar to 30°C (86°F), while lows may dip to 19°C (67°F). Typically, the humidity level in Port Saint John throughout May hovers around 68%.

Precipitation and Sunshine hours

In May, Port Saint John averages 124 mm (4.9 inches) of rainfall, typically over the course of 11 rainy days. The month enjoys an average of 13 hours 33 minutes of daylight, with the sun shining for approximately 10 hours 21 minutes each day. Additionally, there is a 51% probability of sunny days during this period.

UV Index

In May, the UV Index in Port Saint John reaches a maximum of 11, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 10 minutes.

Monthly weather in Port Saint John

• Port Saint John weather January
• Port Saint John weather February
• Port Saint John weather March
• Port Saint John weather April
• Port Saint John weather May
• Port Saint John weather June
• Port Saint John weather July
• Port Saint John weather August
• Port Saint John weather September
• Port Saint John weather October
• Port Saint John weather November
• Port Saint John weather December