September weather forecast
Jonesport, ME

Weather in September

September, the first month of the autumn, in Jonesport, is also an enjoyable month, with average temperature fluctuating between 52.7°F (11.5°C) and 67.1°F (19.5°C).

Temperature

In September, the average high-temperature marginally drops, from a moderately hot 73.4°F (23°C) in August, to a comfortable 67.1°F (19.5°C). The average low-temperature, in September, is 52.7°F (11.5°C).

Humidity

In September, the average relative humidity in Jonesport is 79%.

Rainfall

In Jonesport, it is raining for 10.5 days, with typically 1.81" (46mm) of accumulated precipitation. Throughout the year, there are 142.1 rainfall days, and 32.28" (820mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Ocean temperature

In Jonesport, the average water temperature is 55.8°F (13.2°C).
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

In Jonesport, the average length of the day is 12.5h.

Sunshine

In Jonesport, the average sunshine is 8.2h.

UV index

In Jonesport, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to the Sun's UV rays for the average person.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in September in Jonesport?

In Jonesport, Maine, the average relative humidity in September is 79%.

How much does it rain in Jonesport in September?

In Jonesport, during September, the rain falls for 10.5 days and regularly aggregates up to 1.81" (46mm) of precipitation.

When it does not snow in Jonesport?

June through September are months without snowfall in Jonesport, Maine.

Does it snow in Jonesport in September?

In Jonesport, in September, it doesn't snow. In October, it regularly snows.

How cold is the water in September in Jonesport?

In Jonesport, Maine, in September, the average water temperature is 55.8°F (13.2°C). Swimming in 55.8°F (13.2°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

What is the average length of the day in September in Jonesport?

In September, the average length of the day in Jonesport is 12.5h.

How long on average sun shines in September in Jonesport?

The average sunshine in September in Jonesport is 8.2h.

How high is the UV index in September in Jonesport?

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV rays.

Average temperature in September
Jonesport, ME

Average temperature in September - Jonesport, ME
  • Average high temperature in September: 67.1°F

The warmest month (with the highest average high temperature) is August (73.4°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in September: 52.7°F

The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

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Average pressure in September
Jonesport, ME

Average pressure in September - Jonesport, ME
  • Average pressure in September: 30.04"

The month with the highest atmospheric pressure is September (30.04").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in September
Jonesport, ME

Average wind speed in September - Jonesport, ME
  • Average wind speed in September: 7.1mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

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Average humidity in September
Jonesport, ME

Average humidity in September - Jonesport, ME
  • Average humidity in September: 79%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is November (76%).

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Average rainfall in September
Jonesport, ME

Average rainfall in September - Jonesport, ME
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is July (1.57").

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Average rainfall days in September
Jonesport, ME

Average rainfall days in September - Jonesport, ME
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is April (15.5 days).
The month with the least rainy days is February (7.5 days).

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Average snowfall in September
Jonesport, ME

Average snowfall in September - Jonesport, ME
  • Average snowfall in September: 0"

The month with the highest snowfall is February (5.75").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Jonesport, ME

Average snowfall days in September - Jonesport, ME
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in September
Jonesport, ME

Average sea temperature in September - Jonesport, ME
  • Average sea temperature in September: 55.8°F

The best month for swimming (with the highest average sea temperature) is August (56.8°F).
The coldest month (with the lowest average sea temperature) is March (38.1°F).

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Average daylight in September /
Average sunshine in September
Jonesport, ME

Average daylight in September / Average sunshine in September - Jonesport, ME
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

  • Average sunshine in September: 8.2h

The month with the most sunshine is August (Average sunshine: 10.1h).
The month with the least sunshine is February (Average sunshine: 4.1h).

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Average sunshine days in September
Jonesport, ME

Average sunshine days in September - Jonesport, ME
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is August (18.7 days).
The month with the least sunshine days is April (11.2 days).

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Average UV index in September
Jonesport, ME

Average UV index in September - Jonesport, ME
  • Average UV index in September: 4

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in September
Jonesport, ME

Average cloud cover in September - Jonesport, ME
  • Average cloud cover in September: 35

The month with the most cloud cover is February (Cloud cover 56).
Months with the least cloud cover are August and September (Cloud cover 35).

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Average visibility in September
Jonesport, ME

Average visibility in September - Jonesport, ME
  • Average visibility in September: 6mi

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

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