October weather forecast
Chatham, MA

The calm blue water and white sand on a typical beach in Cape Cod, with a visible path and a far view of the high Chatham Lighthouse, Massachusetts
The calm blue water and white sand on a typical beach in Cape Cod, with a visible path and a far view of the high Chatham Lighthouse, Massachusetts

Weather in October

October, the same as September, in Chatham, Massachusetts, is another mild autumn month, with temperature in the range of an average low of 54.9°F (12.7°C) and an average high of 59.5°F (15.3°C).

Temperature

In October, the average high-temperature marginally drops from a comfortable 66.6°F (19.2°C) in September to a mild 59.5°F (15.3°C). In Chatham, the average low-temperature is 54.9°F (12.7°C).

Humidity

In Chatham, the average relative humidity in October 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 in Chatham, Massachusetts, is 58.3°F (14.6°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 Chatham, Massachusetts, the average length of the day in October is 11h and 4min.
On the first day of the month, sunrise is at 6:36 am and sunset at 6:21 pm. On the last day of October, in Chatham, sunrise is at 7:10 am and sunset at 5:35 pm EDT.

Sunshine

In Chatham, the average sunshine in October is 6.6h.

UV index

In Chatham, the average daily maximum UV index in October is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: In October, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. 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 average humidity in October in Chatham?

In October, the average relative humidity in Chatham is 77%.

What is the rainiest month in Chatham?

October is the month with the most rainfall in Chatham, Massachusetts. Rain falls for 13.4 days and accumulates 2.83" (72mm) of precipitation.

How many days does it rain in October in Chatham?

In Chatham, during October, the rain falls for 13.4 days and regularly aggregates up to 2.83" (72mm) of precipitation.

When it does not snow in Chatham?

In Chatham, Massachusetts, snow does not fall in May through October.

Does it snow in Chatham in October?

In Chatham, Massachusetts, in October, it doesn't snow. In November, it regularly snows.

What is the ocean temperature in October in Chatham?

In October, the average ocean temperature in Chatham, Massachusetts, is 58.3°F (14.6°C). Swimming in 58.3°F (14.6°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Chatham have in October?

The average day length in October is 11h and 4min.

When are sunrise and sunset in October in Chatham?

On the first day of October in Chatham, sunrise is at 6:36 am and sunset at 6:21 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:35 pm EDT.

How long on average sun shines in October in Chatham?

In Chatham, the average sunshine duration in October is 6.6h.

What is the UV index reading in October in Chatham?

The average daily maximum UV index in October is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Chatham, MA

Average temperature in October - Chatham, 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).

[Resources]

Average pressure in October
Chatham, MA

Average pressure in October - Chatham, 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).

[Resources]

Average wind speed in October
Chatham, MA

Average wind speed in October - Chatham, 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).

[Resources]

Average humidity in October
Chatham, MA

Average humidity in October - Chatham, 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%).

[Resources]

Average rainfall in October
Chatham, MA

Average rainfall in October - Chatham, 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").

[Resources]

Average rainfall days in October
Chatham, MA

Average rainfall days in October - Chatham, 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).

[Resources]

Average snowfall in October
Chatham, MA

Average snowfall in October - Chatham, 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").

[Resources]

Average snowfall days in October
Chatham, MA

Average snowfall days in October - Chatham, 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).

[Resources]

Average sea temperature in October
Chatham, MA

Average sea temperature in October - Chatham, MA
  • Average sea temperature in October: 58.3°F

The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is March (39.8°F).

[Resources]

Average daylight in October /
Average sunshine in October
Chatham, MA

Average daylight in October / Average sunshine in October - Chatham, MA
  • Average daylight in October: 11h and 4min

The month with the longest days is June (Average daylight: 15h and 9min).
The month with the shortest days is December (Average daylight: 9h and 13min).

  • 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).

[Resources]

Average sunshine days in October
Chatham, MA

Average sunshine days in October - Chatham, 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).

[Resources]

Average UV index in October
Chatham, MA

Average UV index in October - Chatham, 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).

[Resources]

Average cloud cover in October
Chatham, MA

Average cloud cover in October - Chatham, 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).

[Resources]

Average visibility in October
Chatham, MA

Average visibility in October - Chatham, 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location