Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average sea temperature in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The transition into September in Holland subtly indicates a reduction in the average high-temperature, down to an agreeable 70.9°F (21.6°C) from August's moderately hot 77.2°F (25.1°C). In September, Holland encounters an average low-temperature of 56.5°F (13.6°C) during the night.Humidity
In September, the average relative humidity is 77%.Rainfall
In Holland, during September, the rain falls for 14.2 days and regularly aggregates up to 2.17" (55mm) of precipitation. Throughout the year, in Holland, there are 149.3 rainfall days, and 25.91" (658mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Ocean temperature
In September, the average ocean temperature is 66.2°F (19°C).Note: In water with a temperature of 66.2°F (19°C), swimming is not a joy for most people. The challenge of controlling breathing increases as the temperature dips from 69.8°F (21°C) to 59°F (15°C).
Daylight
The average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 7:09 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 7:26 pm EDT.
Sunshine
The average sunshine in September is 8.4h.UV index
In Holland, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What is the temperature in September in Holland?
What is the average humidity in September in Holland?
How much does it rain in Holland in September?
When it does not snow in Holland?
Does it snow in Holland in September?
What is the ocean temperature in September in Holland?
How many hours of daylight does Holland have in September?
When is the sunrise / sunset in September in Holland?
How many hours of sunshine does Holland have in September?
What is the UV index intensity in September in Holland?
Average temperature in September
Holland, MI
- Average high temperature in September: 70.9°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure in September
Holland, MI
- Average pressure in September: 30.03"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 September
Holland, MI
- Average wind speed in September: 8.6mph
The windiest month (with the highest average wind speed) is January (11.5mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in September
Holland, MI
- Average humidity in September: 77%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in September
Holland, MI
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is October (3.07").
The driest months (with the least rainfall) are February and November (1.5").
Average rainfall days in September
Holland, MI
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is October (17.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
Holland, MI
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Holland, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in September
Holland, MI
- Average sea temperature in September: 66°F
The best month for swimming (with the highest average sea temperature) is August (70°F).
The coldest months (with the lowest average sea temperature) are February, March and April (37°F).
Average daylight in September /
Average sunshine in September
Holland, MI
- Average daylight in September: 12h and 3min
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 September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in September
Holland, MI
- Average sunshine days in September: 14 days
The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is January (7.4 days).
Average UV index in September
Holland, MI
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Holland, MI
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Holland, MI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Holland, Michigan, USA
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