May Weather in Merrimac

Last updated: March 2, 2024

The weather in Merrimac, United States, during May is characterized by an average temperature of 17°C (63°F). Highs can soar to 29°C (85°F), while lows may dip to 2°C (37°F). Typically, the humidity level in Merrimac throughout May hovers around 83%.

2°C (37°F)

Minimum temperature

17°C (63°F)

Average temperature

29°C (85°F)

Maximum temperature

83%

Humidity

Precipitation and Sunshine hours

In May, Merrimac averages 115 mm (4.5 inches) of rainfall, typically over the course of 13 rainy days. The month enjoys an average of 14 hours 10 minutes of daylight, with the sun shining for approximately 9 hours 34 minutes each day. Additionally, there is a 37% probability of sunny days during this period.

115 mm (4.5 inches)

Precipitation

13 rainy days

Rainy days

9 hours 34 minutes

Sunshine hours

37%

Chance of sun

UV Index

In May, the UV Index in Merrimac 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.

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	8	10	11	10	9	6	4	2	1
Exposure	Low		Moderate		VeryHigh		Extreme	VeryHigh		High	Moderate	Low
Time to burn	45 min		30 min		15 min		10 min	15 min		25 min	30 min	45 min