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
Unalaska starts October with an average high-temperature of a frosty 45°F (7.2°C), hinting at a minimal fluctuation from September. Unalaska's nocturnal readings in October exhibit minimal variation from the daytime temperatures, averaging at a wintry 42.4°F (5.8°C).Humidity
In October, the average relative humidity in Unalaska is 82%.Rainfall
In Unalaska, in October, during 21.8 rainfall days, 3.62" (92mm) of precipitation is typically accumulated. Throughout the year, there are 198.8 rainfall days, and 33.78" (858mm) of precipitation is accumulated.Snowfall
Months with snowfall 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. In Unalaska, during the entire year, snow falls for 78.3 days and aggregates up to 30.39" (772mm) of snow.Ocean temperature
In October, the average ocean temperature is 46°F (7.8°C).Note: Unprotected swimming in 46°F (7.8°C) is dangerous due to potential cold shock. Especially when temperatures go below 50°F (10°C), leading to hyperventilation.
Daylight
In Unalaska, 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
In October, the average sunshine is 4.5h.UV index
The average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 2 in October leads to these recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature?
What is the average humidity in October?
How many days does it rain in October?
When does it start to snow?
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?
How many hours of sunshine does Unalaska have in October?
What is the UV index intensity in October?
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
Weather forecast for your location
2. Allow the app to use your location