May Weather in Greenwich

Last updated: March 2, 2024

The weather in Greenwich, United States, during May is characterized by an average temperature of 16°C (62°F). Highs can soar to 31°C (88°F), while lows may dip to 2°C (36°F). Typically, the humidity level in Greenwich throughout May hovers around 81%.

2°C (36°F)

Minimum temperature

16°C (62°F)

Average temperature

31°C (88°F)

Maximum temperature

81%

Humidity

Precipitation and Sunshine hours

In May, Greenwich averages 129 mm (5.1 inches) of rainfall, typically over the course of 15 rainy days. The month enjoys an average of 14 hours 29 minutes of daylight, with the sun shining for approximately 9 hours 14 minutes each day. Additionally, there is a 35% probability of sunny days during this period.

129 mm (5.1 inches)

Precipitation

15 rainy days

Rainy days

9 hours 14 minutes

Sunshine hours

35%

Chance of sun

UV Index

In May, the UV Index in Greenwich reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 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 3 5 7 9 10 10 9 6 4 2 1
Exposure Low Moderate High VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 25 min 30 min 45 min

Compare Greenwich's Climate with Cities Worldwide