September weather forecast and climate
Excursion Inlet, AK

Weather in September

September, the first month of the autumn, in Excursion Inlet, is also a fresh month, with average temperature fluctuating between 51.1°F (10.6°C) and 45°F (7.2°C).

Temperature

In September, the average high-temperature marginally drops, from a mild 56.5°F (13.6°C) in August, to a cool 51.1°F (10.6°C). In Excursion Inlet, the average low-temperature is 45°F (7.2°C).

Humidity

The average relative humidity in Excursion Inlet is 88%.

Rainfall

In Excursion Inlet, it is raining for 18.3 days, with typically 3.62" (92mm) of accumulated precipitation. Throughout the year, there are 182.7 rainfall days, and 37.4" (950mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Excursion Inlet.

Daylight

In September, the average length of the day is 12.8h.

Sunshine

In September, the average sunshine is 5.4h.

UV index

In Excursion Inlet, Alaska, the average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 2 in September interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
[Resources]

FAQ

What is the temperature in September in Excursion Inlet?

In Excursion Inlet, in September, the average high-temperature is 51.1°F (10.6°C), and the average low-temperature is 45°F (7.2°C).

What is the average humidity in September in Excursion Inlet?

The average relative humidity in September in Excursion Inlet is 88%.

How many days does it rain in September in Excursion Inlet?

In September, in Excursion Inlet, Alaska, the rain falls for 18.3 days. Throughout September, 3.62" (92mm) of precipitation is accumulated.

Does it snow in Excursion Inlet in September?

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

When it does not snow in Excursion Inlet?

In Excursion Inlet, Alaska, snow does not fall in May through September.

How many hours of daylight does Excursion Inlet have in September?

In September, the average length of the day is 12.8h.

How long on average sun shines in September in Excursion Inlet?

In Excursion Inlet, the average sunshine in September is 5.4h.

What is the UV index intensity in September in Excursion Inlet?

In September, the average daily maximum UV index in Excursion Inlet, Alaska, is 2. A UV Index estimate of 2, and below, represents a low health risk from the exposure to the Sun's UV rays.

Average temperature in September
Excursion Inlet, AK

Average temperature in September - Excursion Inlet, AK
  • Average high temperature in September: 51.1°F

The warmest month (with the highest average high temperature) is July (57.2°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in September: 45°F

The month with the highest average low temperature is July (49.5°F).
The coldest month (with the lowest average low temperature) is February (25.9°F).

[Resources]

Average pressure in September
Excursion Inlet, AK

Average pressure in September - Excursion Inlet, AK
  • Average pressure in September: 29.88"

The month with the highest atmospheric pressure is July (30.03").
The month with the lowest atmospheric pressure is November (29.77").

[Resources]

Average wind speed in September
Excursion Inlet, AK

Average wind speed in September - Excursion Inlet, AK
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is January (7mph).
The calmest months (with the lowest average wind speed) are June and July (3.7mph).

[Resources]

Average humidity in September
Excursion Inlet, AK

Average humidity in September - Excursion Inlet, AK
  • Average humidity in September: 88%

The month with the highest relative humidity is August (90%).
The month with the lowest relative humidity is November (84%).

[Resources]

Average rainfall in September
Excursion Inlet, AK

Average rainfall in September - Excursion Inlet, AK
  • Average rainfall in September: 3.62"

The wettest months (with the highest rainfall) are October and November (4.21").
The driest month (with the least rainfall) is May (1.61").

[Resources]

Average rainfall days in September
Excursion Inlet, AK

Average rainfall days in September - Excursion Inlet, AK
  • Average rainfall days in September: 18.3 days

The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is February (8.2 days).

[Resources]

Average snowfall in September
Excursion Inlet, AK

Average snowfall in September - Excursion Inlet, AK
  • Average snowfall in September: 0"

The month with the highest snowfall is January (11.22").
Months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in September
Excursion Inlet, AK

Average snowfall days in September - Excursion Inlet, AK
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is March (13.2 days).
Months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Excursion Inlet, AK

Average daylight in September / Average sunshine in September - Excursion Inlet, AK
  • Average daylight in September: 12.8h

The month with the longest days is June (Average daylight: 18.2h).
The month with the shortest days is December (Average daylight: 6.5h).

  • Average sunshine in September: 5.4h

The month with the most sunshine is June (Average sunshine: 7.7h).
Months with the least sunshine are January and December (Average sunshine: 2.9).

[Resources]

Average sunshine days in September
Excursion Inlet, AK

Average sunshine days in September - Excursion Inlet, AK
  • Average sunshine days in September: 10.2 days

Months with the most sunshine days are February and May (12.5 days).
The month with the least sunshine days is June (7.7 days).

[Resources]

Average UV index in September
Excursion Inlet, AK

Average UV index in September - Excursion Inlet, AK
  • Average UV index in September: 2

The month with the highest UV index is July (UV index 4).
Months with the lowest UV index are November and December (UV index 1).

[Resources]

Average cloud cover in September
Excursion Inlet, AK

Average cloud cover in September - Excursion Inlet, AK
  • Average cloud cover in September: 63

The month with the most cloud cover is November (Cloud cover 71).
The month with the least cloud cover is May (Cloud cover 56).

[Resources]

Average visibility in September
Excursion Inlet, AK

Average visibility in September - Excursion Inlet, AK
  • Average visibility in September: 5mi

Months with the highest visibility are January, February, March, April, May, June, September, October, November and December (5mi).
Months with the lowest visibility are July and August (4mi).

[Resources]