October weather forecast
Annapolis, MD

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The Chesapeake Bay at dusk, in Annapolis, Maryland, with a distant view of the US Naval Academy chapel dome
The Chesapeake Bay at dusk, in Annapolis, Maryland, with a distant view of the US Naval Academy chapel dome

Weather in October

October marks the full arrival of autumn in Annapolis. The climatic shift is clearly visible with the landscape assuming a palette of vibrant fall colors. As temperatures continue to dip, the crisp autumn air enhances the city’s beauty. Wind speed experiences a slight increase, adding a brisk touch to the weather. Annapolis in October is the epitome of charm with its cooler weather, vibrant foliage, and fewer crowds.

Temperature

October's arrival in Annapolis coincides with a drop in the average high-temperature, decreasing from September's warm 77°F (25°C) to a comfortable 66.2°F (19°C). Annapolis, in October, experiences an average temperature of 54.5°F (12.5°C) at night.

Humidity

In Annapolis, the average relative humidity in October is 75%.

Rainfall

In Annapolis, in October, during 8.8 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. Throughout the year, there are 120.4 rainfall days, and 10.47" (266mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Annapolis.

Ocean temperature

In Annapolis, the average seawater temperature in October is 66.7°F (19.3°C).
Note: Swimming is not enjoyable for most people in water that is 66.7°F (19.3°C). As the temperature descends from 69.8°F (21°C) to 59°F (15°C), breathing control becomes harder.

Daylight

In October, the average length of the day is 11h and 10min.
On the first day of the month, sunrise is at 7:02 am and sunset at 6:48 pm. On the last day of October, sunrise is at 7:32 am and sunset at 6:06 pm EDT.

Sunshine

The average sunshine in October is 5.7h.

UV index

The average daily maximum UV index in October is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 4 during October translates into these guidelines:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Experience reduced UV exposure by about half when donning a wide-brim hat.
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Frequently asked questions

What is the usual temperature for Annapolis in October?

The average high-temperature and low-temperature in Annapolis during October are 66.2°F (19°C) and 54.5°F (12.5°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 89.6°F (32°C).

What is the average humidity in October in Annapolis?

In October, the average relative humidity is 75%.

How many days does it rain in October in Annapolis?

In October, in Annapolis, Maryland, the rain falls for 8.8 days. Throughout October, 0.87" (22mm) of precipitation is accumulated.

When it does not snow in Annapolis?

In Annapolis, snow does not fall in April through October.

Does it snow in Annapolis in October?

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

What is the ocean temperature in October in Annapolis?

In October, the average ocean temperature in Annapolis is 66.7°F (19.3°C). For swimming, a surface water temperature of 66.7°F (19.3°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

What is the average length of the day in October in Annapolis?

In Annapolis, Maryland, the average day length in October is 11h and 10min.

What time are sunrise and sunset in October in Annapolis?

In October, on the first day of the month, sunrise is at 7:02 am and sunset at 6:48 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 6:06 pm EDT.

How many hours of sunshine does Annapolis have in October?

In October, the average sunshine duration is 5.7h.

What is the UV index intensity in October in Annapolis?

The average daily maximum UV index in October is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJASOctoberND
Sep
October
Nov
Average high temperature
77°F 25°C
66.2°F 19°C
54.5°F 12.5°C
Average low temperature
64.6°F 18.1°C
54.5°F 12.5°C
43.2°F 6.2°C
Average pressure
30.05" 763mmHg
30.03" 763mmHg
30.13" 765mmHg
Average wind speed
7.6mph 12.2km/h
9mph 14.5km/h
9.3mph 15km/h
Average max. wind speed
7.9mph 12.7km/h
9.7mph 15.6km/h
9.9mph 15.9km/h
Average wind speed gusts
11.9mph 19.2km/h
14.5mph 23.3km/h
15.2mph 24.5km/h
Average humidity
75%
75%
72%
Average rainfall
0.63" 16mm
0.87" 22mm
0.51" 13mm
Average rainfall days
10.5
8.8
5.3
Average snowfall
0" 0mm
0" 0mm
0.04" 1mm
Average snowfall days
0
0
0.4
Average sea temperature
73.9°F 23.3°C
66.7°F 19.3°C
57.9°F 14.4°C
Average daylight
12h 2min
11h 1min
10h 1min
Average sunshine
9h 1min
5h 4min
5h 5min
Average sunshine days
17.4
20
23.4
Average UV index
5
4
3
Average cloud cover
33%
37%
36%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in October
Annapolis, MD

Average temperature in October - Annapolis, MD
  • Average high temperature in October: 66.2°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.3°F).

  • Average low temperature in October: 54.5°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in October
Annapolis, MD

Average pressure in October - Annapolis, MD
  • Average pressure in October: 30.03"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in October
Annapolis, MD

Average wind speed in October - Annapolis, MD
  • Average wind speed in October: 9mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in October
Annapolis, MD

Average humidity in October - Annapolis, MD
  • Average humidity in October: 75%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).

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Average rainfall in October
Annapolis, MD

Average rainfall in October - Annapolis, MD
  • Average rainfall in October: 0.87"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in October
Annapolis, MD

Average rainfall days in October - Annapolis, MD
  • Average rainfall days in October: 8.8 days

The months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).

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Average snowfall in October
Annapolis, MD

Average snowfall in October - Annapolis, MD
  • Average snowfall in October: 0"

The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in October
Annapolis, MD

Average snowfall days in October - Annapolis, MD
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in October
Annapolis, MD

Average sea temperature in October - Annapolis, MD
  • Average sea temperature in October: 66.7°F

The best month for swimming (with the highest average sea temperature) is August (77.8°F).
The coldest month (with the lowest average sea temperature) is February (45.1°F).

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Average daylight in October /
Average sunshine in October
Annapolis, MD

Average daylight in October / Average sunshine in October - Annapolis, MD
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in October: 5h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in October
Annapolis, MD

Average sunshine days in October - Annapolis, MD
  • Average sunshine days in October: 20 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).

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Average UV index in October
Annapolis, MD

Average UV index in October - Annapolis, MD
  • Average UV index in October: 4

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in October
Annapolis, MD

Average cloud cover in October - Annapolis, MD
  • Average cloud cover in October: 37

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in October
Annapolis, MD

Average visibility in October - Annapolis, MD
  • 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).

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Annapolis, Maryland, USA

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