Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average sea temperature in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
Transitioning into October, Unalaska records an average high-temperature of a frosty 45°F (7.2°C), almost identical to September's 50°F (10°C). An average nighttime temperature of 42.4°F (5.8°C) marks October in Unalaska.Humidity
In Unalaska, the average relative humidity in October is 82%.Rainfall
In October, in Unalaska, the rain falls for 21.8 days. Throughout October, 3.62" (92mm) of precipitation is accumulated. In Unalaska, during the entire year, the rain falls for 198.8 days and collects up to 33.78" (858mm) of precipitation.Snowfall
Months with snowfall in Unalaska are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 0.7 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 78.3 snowfall days, and 30.39" (772mm) of snow is accumulated.Ocean temperature
In Unalaska, Alaska, the average seawater temperature in October is 46°F (7.8°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 Unalaska, Alaska, the average length of the day in October is 10h and 31min.On the first day of the month, sunrise is at 9:09 am and sunset at 8:41 pm. On the last day of October, sunrise is at 10:06 am and sunset at 7:33 pm AKDT.
Sunshine
The average sunshine in October in Unalaska is 4.5h.UV index
The average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during October translates into the following guidance:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. To guard against the harmful effects of the Sun, minimize exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
What is the temperature in October in Unalaska?
What is the average humidity in October in Unalaska?
How many days does it rain in October in Unalaska?
When does it start to snow in Unalaska?
What is the water temperature in October in Unalaska?
How many hours of daylight does Unalaska have in October?
What time are sunrise and sunset in October in Unalaska?
How many hours of sunshine does Unalaska have in October?
How high is the UV index in October in Unalaska?
Average temperature in October
Unalaska, AK
- Average high temperature in October: 45°F
The warmest month (with the highest average high temperature) is August (53.2°F).
The month with the lowest average high temperature is March (34.7°F).
- Average low temperature in October: 42.4°F
The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is March (30.7°F).
Average pressure in October
Unalaska, AK
- Average pressure in October: 29.63"Hg
The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is January (29.5"Hg).
Average wind speed in October
Unalaska, AK
- Average wind speed in October: 15.2mph
The windiest months (with the highest average wind speed) are November and December (16.5mph).
The calmest month (with the lowest average wind speed) is July (9.1mph).
Average humidity in October
Unalaska, AK
- Average humidity in October: 82%
The month with the highest relative humidity is July (91%).
The months with the lowest relative humidity are November and December (80%).
Average rainfall in October
Unalaska, AK
- Average rainfall in October: 3.62"
The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is July (1.85").
Average rainfall days in October
Unalaska, AK
- Average rainfall days in October: 21.8 days
The month with the highest number of rainy days is October (21.8 days).
The month with the least rainy days is February (11.1 days).
Average snowfall in October
Unalaska, AK
- Average snowfall in October: 0.12"
The month with the highest snowfall is January (6.97").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Unalaska, AK
- Average snowfall days in October: 0.7 days
The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in October
Unalaska, AK
- Average sea temperature in October: 46°F
The best month for swimming (with the highest average sea temperature) is August (50.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).
Average daylight in October /
Average sunshine in October
Unalaska, AK
- Average daylight in October: 10h and 3min
The month with the longest days is June (Average daylight: 17h and 0min).
The month with the shortest days is December (Average daylight: 7h and 30min).
- Average sunshine in October: 4h and 3min
The month with the most sunshine is June (Average sunshine: 5h and 48min).
The month with the least sunshine is December (Average sunshine: 2h and 0min).
Average sunshine days in October
Unalaska, AK
- Average sunshine days in October: 5.4 days
The month with the most sunshine days is August (9.7 days).
The month with the least sunshine days is April (3.8 days).
Average UV index in October
Unalaska, AK
- Average UV index in October: 2
The months with the highest UV index are July and August (UV index 3).
The months with the lowest UV index are February, March, April and November (UV index 1).
Average cloud cover in October
Unalaska, AK
- Average cloud cover in October: 66
The month with the most cloud cover is July (Cloud cover 74).
The months with the least cloud cover are September and October (Cloud cover 66).
Average visibility in October
Unalaska, AK
- Average visibility in October: 6mi
The months with the highest visibility are May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April, July and December (5mi).
Unalaska, Alaska, USA
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