May weather forecast
Grand Haven, MI

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Weather in May

May, the last month of the spring in Grand Haven, is a refreshing month, with an average temperature ranging between min 47.8°F (8.8°C) and max 59°F (15°C).

Temperature

The arrival of May brings a change in Grand Haven's weather, with average high-temperatures moving from April's frosty 48.6°F (9.2°C) to a refreshing 59°F (15°C). Grand Haven usually reports an average low-temperature of 47.8°F (8.8°C) during the month of May.

Humidity

In May, the average relative humidity is 79%.

Rainfall

In Grand Haven, in May, during 15.7 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. Throughout the year, there are 139.5 rainfall days, and 22.8" (579mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in May is 14h and 41min.
On the first day of the month, sunrise is at 6:37 am and sunset at 8:46 pm. On the last day of May, sunrise is at 6:08 am and sunset at 9:17 pm EDT.

Sunshine

The average sunshine in May is 9h.

UV index

In Grand Haven, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: In May, the average maximum UV index of 4 translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

In Grand Haven, in May, the average high-temperature is 59°F (15°C), and the average low-temperature is 47.8°F (8.8°C).

What is the average humidity in May?

The average relative humidity in May is 79%.

How many days does it rain in May in Grand Haven?

In Grand Haven, during May, the rain falls for 15.7 days and regularly aggregates up to 2.44" (62mm) of precipitation.

When it does not snow in Grand Haven?

May through October are months without snowfall.

Does it snow in May?

In May, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May?

In Grand Haven, the average day length in May is 14h and 41min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 6:37 am and sunset at 8:46 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 9:17 pm EDT.

How many hours of sunshine does Grand Haven have in May?

The average sunshine duration in May is 9h.

What is the UV index intensity in May?

In Grand Haven, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average high temperature
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Grand Haven, MI

Average temperature in May - Grand Haven, MI
  • Average high temperature in May: 59°F

The warmest month (with the highest average high temperature) is August (75.2°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in May: 47.8°F

The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

Average pressure in May
Grand Haven, MI

Average pressure in May - Grand Haven, MI
  • Average pressure in May: 29.97"Hg

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Grand Haven, MI

Average wind speed in May - Grand Haven, MI
  • Average wind speed in May: 9.7mph

The windiest months (with the highest average wind speed) are January and November (12.6mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity in May
Grand Haven, MI

Average humidity in May - Grand Haven, MI
  • Average humidity in May: 79%

The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (76%).

Average rainfall in May
Grand Haven, MI

Average rainfall in May - Grand Haven, MI
  • Average rainfall in May: 2.44"

The wettest month (with the highest rainfall) is October (2.56").
The driest month (with the least rainfall) is November (1.22").

Average rainfall days in May
Grand Haven, MI

Average rainfall days in May - Grand Haven, MI
  • Average rainfall days in May: 15.7 days

The month with the highest number of rainy days is October (16.5 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in May
Grand Haven, MI

Average snowfall in May - Grand Haven, MI
  • Average snowfall in May: 0"

The month with the highest snowfall is February (4.13").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Grand Haven, MI

Average snowfall days in May - Grand Haven, MI
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Grand Haven, MI

Average daylight in May / Average sunshine in May - Grand Haven, MI
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 9h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).

Average sunshine days in May
Grand Haven, MI

Average sunshine days in May - Grand Haven, MI
  • Average sunshine days in May: 12.8 days

The month with the most sunshine days is March (16.2 days).
The month with the least sunshine days is January (9.2 days).

Average UV index in May
Grand Haven, MI

Average UV index in May - Grand Haven, MI
  • Average UV index in May: 4

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in May
Grand Haven, MI

Average cloud cover in May - Grand Haven, MI
  • Average cloud cover in May: 39

The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 25).

Average visibility in May
Grand Haven, MI

Average visibility in May - Grand Haven, MI
  • Average visibility in May: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Grand Haven, Michigan, USA

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