November Weather in Portsmouth, United States

Last updated: June 24, 2025

In November, the average temperature in Portsmouth, United States hovers around 7°C (45°F). Expect a range that includes a chilly minimum of -10°C (14°F) and a warm maximum of 27°C (81°F). During this month, be prepared for 77 mm (3.0 in) of precipitation spread over about 8 days, contributing to an average humidity of 89%.

November Temperature in Portsmouth

In November in Portsmouth, the average temperature is 7°C (45°F). Maximum temperatures can reach 27°C (81°F), while minimum temperatures can drop as low as -10°C (14°F). Be prepared for a wide range of temperatures if you're planning to travel during this month.

November Weather in Portsmouth: Daily Temperature Highs, Lows, and Averages

The chart illustrates November temperature patterns in Portsmouth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portsmouth, November typically has an average temperature of 7°C (45°F), with highs reaching up to 27°C (81°F) and lows dropping to around -10°C (14°F).

Data source: Temperature data for Portsmouth generated using information from the Copernicus Climate Change Service.

November Precipitation in Portsmouth

In Portsmouth in November, the precipitation amount is 77 mm (3.0 in) distributed over 8 days.

November Precipitation Trends in Portsmouth

The chart displays monthly precipitation patterns in Portsmouth, with values for each month alongside November’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how November’s conditions compare to those of other months. In Portsmouth, November typically receives around 77 mm (3.0 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for November generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

November Humidity in Portsmouth

In Portsmouth in November, humidity is 89%. With an average temperature of 7°C (45°F), this humidity feels like stepping into a damp cloud, making traveling quite uncomfortable as the moisture clings to your skin and clothes, turning even mild activity into a sweaty ordeal.

November Average Humidity in Portsmouth

This chart illustrates the average monthly humidity levels in Portsmouth, with November’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In November, average humidity in Portsmouth is approximately 89%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for November generated using information from the Copernicus Climate Change Service.

November UV Index in Portsmouth

In Portsmouth in November, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Portsmouth.

Maximum UV Index Levels in Portsmouth for November

The chart shows the monthly maximum UV Index (UVI) for Portsmouth in November, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In November, the maximum UV index in Portsmouth typically reaches 5, which falls under the moderate exposure category.

Data source: Portsmouth November UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How November Weather in Portsmouth Compares to Other Months

Weather in Portsmouth varies notably across the year, with each month offering distinct climate conditions. This page compares November’s weather to other months in Portsmouth, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Portsmouth, showing how November’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (35°F)	85 mm (3.3 inches)	88%	moderate
February Weather	4°C (39°F)	124 mm (4.9 inches)	88%	moderate
March Weather	8°C (47°F)	106 mm (4.2 inches)	87%	high
April Weather	13°C (55°F)	128 mm (5.0 inches)	85%	very high
May Weather	19°C (66°F)	128 mm (5.0 inches)	81%	very high
June Weather	23°C (73°F)	157 mm (6.2 inches)	82%	very high
July Weather	25°C (78°F)	107 mm (4.2 inches)	81%	very high
August Weather	24°C (75°F)	120 mm (4.7 inches)	73%	very high
September Weather	21°C (71°F)	109 mm (4.3 inches)	73%	very high
October Weather	15°C (60°F)	116 mm (4.5 inches)	78%	high
November Weather	7°C (45°F)	77 mm (3.0 inches)	89%	moderate
December Weather	4°C (40°F)	112 mm (4.4 inches)	87%	moderate