Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Grand Haven reaches its highest average temperatures in August, measuring 75.2°F (24°C) at the peak and 64.4°F (18°C) at the lowest.Humidity
The average relative humidity in August is 77%.Rainfall
In Grand Haven, in August, it is raining for 13.8 days, with typically 1.93" (49mm) of accumulated precipitation. In Grand Haven, during the entire year, the rain falls for 139.5 days and collects up to 22.8" (579mm) of precipitation.Snowfall
In Grand Haven, snow does not fall in May through October.Daylight
The average length of the day in August is 13h and 53min.On the first day of the month, sunrise is at 6:36 am and sunset at 9:05 pm. On the last day of August, sunrise is at 7:09 am and sunset at 8:20 pm EDT.
Sunshine
In August, the average sunshine is 10.2h.UV index
July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 6 in August leads to these recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest?
What are August temperatures?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
What is the average length of the day in August?
When are sunrise and sunset in August?
How long on average sun shines in August?
What are the months with the highest UV index?
How high is the UV index in August in Grand Haven?
Average temperature in August
Grand Haven, MI
- Average high temperature in August: 75.2°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 August: 64.4°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 August
Grand Haven, MI
- Average pressure in August: 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 August
Grand Haven, MI
- Average wind speed in August: 8.6mph
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 August
Grand Haven, MI
- Average humidity in August: 77%
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 August
Grand Haven, MI
- Average rainfall in August: 1.93"
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 August
Grand Haven, MI
- Average rainfall days in August: 13.8 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 August
Grand Haven, MI
- Average snowfall in August: 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 August
Grand Haven, MI
- Average snowfall days in August: 0 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 August /
Average sunshine in August
Grand Haven, MI
- Average daylight in August: 13h and 5min
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 August: 10h and 1min
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 August
Grand Haven, MI
- Average sunshine days in August: 13.4 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 August
Grand Haven, MI
- Average UV index in August: 6
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 August
Grand Haven, MI
- Average cloud cover in August: 26
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 August
Grand Haven, MI
- Average visibility in August: 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
Weather forecast for your location
2. Allow the app to use your location