February Weather in Portsmouth, United States

Last updated: June 24, 2025

In February, the average temperature in Portsmouth, United States hovers around 8°C (47°F). While you might experience a chilly minimum of -7°C (20°F), it can soar to a pleasant 26°C (78°F) at times. Expect 99 mm (3.9 in) of precipitation spread over about 12 days, contributing to an average humidity level of 83%. Perfect weather for cozy indoor activities or exploring the vibrant scenery!

February Temperature in Portsmouth

In February in Portsmouth, the average temperature is 8°C (47°F). Maximum temperatures can reach 26°C (78°F), while minimums can drop as low as -7°C (20°F). Be prepared for a wide range of weather conditions when traveling during this time.

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

The chart illustrates February 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, February typically has an average temperature of 8°C (47°F), with highs reaching up to 26°C (78°F) and lows dropping to around -7°C (20°F).

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

February Precipitation in Portsmouth

In Portsmouth in February, the total precipitation amount is 99 mm (3.9 in) recorded over a span of 12 days.

February Precipitation Trends in Portsmouth

The chart displays monthly precipitation patterns in Portsmouth, with values for each month alongside February’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how February’s conditions compare to those of other months. In Portsmouth, February typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 12 days.

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

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Millimeters (mm) Inches (in)

February Humidity in Portsmouth

In Portsmouth in February humidity is 83%. With an average temperature of 8°C (47°F), this humidity feels like a chilly dampness that clings to your skin, making travel uncomfortable and leaving you yearning for warmth and dryness as you explore.

February Average Humidity in Portsmouth

This chart illustrates the average monthly humidity levels in Portsmouth, with February’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In February, average humidity in Portsmouth is approximately 83%, offering insight into how humid the weather typically is during this month.

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

February UV Index in Portsmouth

In Portsmouth in February, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Portsmouth, you can refer to this Hourly UV Index in Portsmouth.

Maximum UV Index Levels in Portsmouth for February

The chart shows the monthly maximum UV Index (UVI) for Portsmouth in February, 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 February, the maximum UV index in Portsmouth typically reaches 6, which falls under the high exposure category.

Data source: Portsmouth February 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 February 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 February’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 February’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	90 mm (3.5 inches)	84%	moderate
February Weather	8°C (47°F)	99 mm (3.9 inches)	83%	high
March Weather	10°C (51°F)	79 mm (3.1 inches)	82%	very high
April Weather	16°C (60°F)	97 mm (3.8 inches)	81%	very high
May Weather	20°C (69°F)	121 mm (4.7 inches)	80%	very high
June Weather	24°C (76°F)	121 mm (4.8 inches)	82%	very high
July Weather	27°C (81°F)	142 mm (5.6 inches)	81%	extreme
August Weather	26°C (79°F)	169 mm (6.6 inches)	81%	very high
September Weather	24°C (75°F)	127 mm (5.0 inches)	78%	very high
October Weather	19°C (66°F)	91 mm (3.6 inches)	80%	very high
November Weather	11°C (53°F)	78 mm (3.1 inches)	84%	moderate
December Weather	8°C (47°F)	89 mm (3.5 inches)	84%	moderate