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
At the onset of September, Vinalhaven records an average high-temperature of a still enjoyable 61.7°F (16.5°C), showing little deviation from the preceding month. Vinalhaven in September observes a slight diminution in temperature from daily highs, recording a low-temperature average of 57.4°F (14.1°C).Humidity
In September, the average relative humidity is 82%.Rainfall
The months with the least rainfall in Vinalhaven are August and September Rain falls for 7.8 days and accumulates 0.55" (14mm) of rain.Snowfall
In Vinalhaven, snow does not fall in May through October.Ocean temperature
In Vinalhaven, in September, the average water temperature is 56.8°F (13.8°C).Note: Swimming at temperatures less than 50°F (10°C) in 56.8°F (13.8°C) is feasible with the right swimsuit; if not, expect cold shock and breathlessness. A quick swim at 55.4°F (13°C) without adequate warmth can be discomforting.
Daylight
The average length of the day in September is 12h and 30min.On the first day of September in Vinalhaven, sunrise is at 5:59 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 6:17 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index in Vinalhaven is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Make use of precautions - Suggestions to resist sunburn are communicated. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Vinalhaven in September?
What is the average humidity in September in Vinalhaven?
What is the driest month in Vinalhaven?
How many days does it rain in September in Vinalhaven?
When it does not snow in Vinalhaven?
How cold is the water in September in Vinalhaven?
What is the average length of the day in September in Vinalhaven?
When is the sunrise / sunset in September in Vinalhaven?
How many hours of sunshine does Vinalhaven have in September?
What is the UV index reading in September in Vinalhaven?
Average temperature in September
Vinalhaven, ME
- Average high temperature in September: 61.7°F
The warmest month (with the highest average high temperature) is August (65.7°F).
The month with the lowest average high temperature is January (34.7°F).
- Average low temperature in September: 57.4°F
The month with the highest average low temperature is August (61.7°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in September
Vinalhaven, ME
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Vinalhaven, ME
- Average wind speed in September: 12.1mph
The windiest month (with the highest average wind speed) is January (19.4mph).
The calmest months (with the lowest average wind speed) are July and August (10.3mph).
Average humidity in September
Vinalhaven, ME
- Average humidity in September: 82%
The months with the highest relative humidity are June, July and August (86%).
The month with the lowest relative humidity is November (74%).
Average rainfall in September
Vinalhaven, ME
- Average rainfall in September: 0.55"
The wettest months (with the highest rainfall) are October and November (1.02").
The driest months (with the least rainfall) are August and September (0.55").
Average rainfall days in September
Vinalhaven, ME
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is July (11.6 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in September
Vinalhaven, ME
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Vinalhaven, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in September
Vinalhaven, ME
- Average sea temperature in September: 56.8°F
The best month for swimming (with the highest average sea temperature) is August (58.6°F).
The coldest month (with the lowest average sea temperature) is March (38.2°F).
Average daylight in September /
Average sunshine in September
Vinalhaven, ME
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in September
Vinalhaven, ME
- Average sunshine days in September: 21.1 days
The month with the most sunshine days is August (21.2 days).
The month with the least sunshine days is February (13.5 days).
Average UV index in September
Vinalhaven, ME
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Vinalhaven, ME
- Average cloud cover in September: 31
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Vinalhaven, ME
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Vinalhaven, Maine, USA
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