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
October's arrival comes with a decrease in the average high-temperature, moving from an enjoyable 67.1°F (19.5°C) in September to a mild 55.8°F (13.2°C). Castine, during the month of October, experiences an average low-temperature of 43.2°F (6.2°C).Humidity
The average relative humidity in October is 80%.Rainfall
In Castine, in October, it is raining for 13.3 days, with typically 2.56" (65mm) of accumulated precipitation. Throughout the year, there are 141.1 rainfall days, and 24.29" (617mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. In Castine, during the entire year, snow falls for 44.3 days and aggregates up to 16.81" (427mm) of snow.Ocean temperature
In October, the average ocean temperature is 53.8°F (12.1°C).Note: Diving into 53.8°F (12.1°C) when it's under 50°F (10°C) can cause immediate cold shock symptoms, marked by hyperventilation.
Daylight
In Castine, Maine, the average length of the day in October is 10h and 58min.On the first day of October, sunrise is at 6:33 am and sunset at 6:15 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:25 pm EDT.
Sunshine
The average sunshine in October in Castine is 6h.UV index
In Castine, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index, 3 in October, converts into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature?
What is the average humidity in October?
How much does it rain in October?
When does it start snowing?
What is the ocean temperature in October?
What is the average length of the day in October?
When is the sunrise / sunset in October?
How long on average sun shines in October in Castine?
How high is the UV index in October?
Average temperature in October
Castine, ME
- Average high temperature in October: 55.8°F
The warmest months (with the highest average high temperature) are July and August (73.9°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in October: 43.2°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in October
Castine, ME
- Average pressure in October: 29.99"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 October
Castine, ME
- Average wind speed in October: 8.5mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in October
Castine, ME
- Average humidity in October: 80%
The months with the highest relative humidity are February and July (83%).
The month with the lowest relative humidity is November (77%).
Average rainfall in October
Castine, ME
- Average rainfall in October: 2.56"
The wettest month (with the highest rainfall) is December (2.72").
The driest months (with the least rainfall) are July and September (1.46").
Average rainfall days in October
Castine, ME
- Average rainfall days in October: 13.3 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in October
Castine, ME
- Average snowfall in October: 0.04"
The month with the highest snowfall is January (4.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Castine, ME
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in October
Castine, ME
- Average sea temperature in October: 53.8°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 October /
Average sunshine in October
Castine, ME
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in October: 6h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in October
Castine, ME
- Average sunshine days in October: 16.1 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in October
Castine, ME
- Average UV index in October: 3
The months with the highest UV index are June, 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 October
Castine, ME
- Average cloud cover in October: 46
The month with the most cloud cover is March (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 37).
Average visibility in October
Castine, ME
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).
Castine, Maine, USA
Weather forecast for your location
2. Allow the app to use your location