October weather forecastHarwich Port, MA
October
Weather in October
October, like September, is another refreshing autumn month in Harwich Port, Massachusetts, with an average temperature varying between 54.9°F (12.7°C) and 59.5°F (15.3°C).Temperature
The beginning of October brings a minor change in the average high-temperature, shifting from a comfortable 66.6°F (19.2°C) in September to a still refreshing 59.5°F (15.3°C). Harwich Port sees a gentle drop from the daily peak temperature in October, with an average low settling at a cool 54.9°F (12.7°C).Humidity
In October, the average relative humidity is 77%.Rainfall
The month with the most rainfall is October, when the rain falls for 13.4 days and typically aggregates up to 2.83" (72mm) of precipitation.Snowfall
May through October are months without snowfall.Ocean temperature
In October, the average ocean temperature is 58.6°F (14.8°C).Note: Staying in 58.6°F (14.8°C) waters for just a few moments at 55.4°F (13°C) can be harrowing, and below 50°F (10°C) poses breathing and cold shock risks, depending on individual tolerance.
Daylight
In October, the average length of the day is 11h and 4min.On the first day of the month, sunrise is at 6:37 am and sunset at 6:21 pm. On the last day of October, sunrise is at 7:11 am and sunset at 5:35 pm EDT.
Sunshine
The average sunshine in October is 6.6h.UV index
In October, the average daily maximum UV index in Harwich Port is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 4 during October translates into the following directions:
Undertake precautions - Obligation exists to protect against skin and eye damage. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Harwich Port, MA
- Average high temperature in October: 59.5°F
The warmest month (with the highest average high temperature) is August (71.6°F).
The months with the lowest average high temperature are January and February (39°F).
- Average low temperature in October: 54.9°F
The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure in October
Harwich Port, MA
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in October
Harwich Port, MA
- Average wind speed in October: 15.5mph
The windiest month (with the highest average wind speed) is January (18mph).
The calmest month (with the lowest average wind speed) is August (11.4mph).
Average humidity in October
Harwich Port, MA
- Average humidity in October: 77%
The months with the highest relative humidity are June and July (85%).
The month with the lowest relative humidity is November (74%).
Average rainfall in October
Harwich Port, MA
- Average rainfall in October: 2.83"
The wettest month (with the highest rainfall) is October (2.83").
The driest month (with the least rainfall) is November (1.46").
Average rainfall days in October
Harwich Port, MA
- Average rainfall days in October: 13.4 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in October
Harwich Port, MA
- Average snowfall in October: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Harwich Port, MA
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in October
Harwich Port, MA
- Average sea temperature in October: 58.7°F
The best month for swimming (with the highest average sea temperature) is August (67.5°F).
The coldest month (with the lowest average sea temperature) is March (39°F).
Average daylight in October /
Average sunshine in October
Harwich Port, MA
- Average daylight in October: 11h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in October: 6h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in October
Harwich Port, MA
- Average sunshine days in October: 15.5 days
The month with the most sunshine days is August (17.6 days).
The month with the least sunshine days is January (13 days).
Average UV index in October
Harwich Port, MA
- Average UV index in October: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in October
Harwich Port, MA
- Average cloud cover in October: 41
The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in October
Harwich Port, MA
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





