November Weather in Portsmouth, United Kingdom

Last updated: March 17, 2025

In November, Portsmouth, United Kingdom, experiences a chilly climate with maximum temperatures reaching 16°C (61°F) and averaging around 10°C (50°F). As the month progresses, temperatures can dip to a brisk 1°C (33°F) at night, prompting residents and visitors alike to layer up. With 87 mm (3.4 in) of rain spread over 15 days, November is characterized by its humid conditions, peaking at an impressive 92% humidity. This combination of cool temperatures and frequent rainfall creates a quintessentially British autumn atmosphere, making it a unique time to explore the city’s maritime heritage.

November Temperature in Portsmouth

In November, Portsmouth begins to transition into the chill of winter, with temperatures reflecting a distinct drop from the milder autumn months. The average temperature sits around 10°C (50°F), offering a crispness in the air that's characteristic of late fall. Early in the month, minimums can dip to 1°C (33°F), while daytime highs reach a comfortable 16°C (61°F), allowing for pleasantly crisp afternoons amidst the gathering clouds. This month sees a notable decrease in maximum temperatures when compared to October, hinting at the approaching winter chill. As the days shorten, jackets become a staple for outings, encapsulating the cozy atmosphere that November brings to this vibrant coastal city.

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.
JanFebMarAprMayJunJulAugSepOctNovDec444546495561646461565047
Data source: Temperature data for Portsmouth generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

November Precipitation in Portsmouth

November in Portsmouth sees a notable increase in precipitation, with 87 mm (3.4 in) of rain falling over an average of 15 days. This marks a rise from October's substantial 117 mm (4.6 in), but still positions November among the wetter months of the year, particularly in comparison to the drier spells of spring. Following the pattern of earlier months, November continues to showcase the city's moist maritime climate, with the rain often punctuating the crisp autumn air. As winter approaches, the blend of damp days and cooler temperatures sets the stage for the much wetter month of December, reminding residents to keep their umbrellas handy as they navigate the season.

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.
JanFebMarAprMayJunJulAugSepOctNovDec68757032567358785711787118
Data source: Precipitation data for November generated using information from the Copernicus Climate Change Service.
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November Humidity in Portsmouth

In November, Portsmouth experiences a notable rise in humidity, reaching a peak of 92%, which is in line with the dampness characteristic of the late autumn months. This increase reflects a trend of generally higher humidity levels as the year draws to a close; in fact, the fall months of October and November both showcase elevated humidity, with October at 90%. The transition from the warmer summer months to the cooler fall season has a marked effect, as observed in the July and August averages of 71% and 76%, respectively. As winter approaches, humidity levels remain consistently high, matching December's figures, suggesting a persistent atmosphere filled with moisture, which can contribute to the region's characteristic rainy weather.

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, allowing you to see how November's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%79%81%71%76%82%91%92%92%
Data source: Humidity data for November generated using information from the Copernicus Climate Change Service.

November UV Index in Portsmouth

As autumn gives way to winter, the UV Index in Portsmouth during November drops to a modest level of 2, categorizing exposure as low and allowing for a safe burn time of 45 minutes. This is a stark contrast to the summer months, where the index peaked at 8, indicating very high exposure levels that required more vigilance. The trend showcases a gradual decline in UV radiation from the earlier months, with the index steadily decreasing from 6 in September to 4 in October, before reaching this more manageable level. With such low UV exposure, now is a great time to enjoy the outdoors without the typical sun safety concerns. For detailed information on UV levels throughout the year, check out Portsmouth UV Index.

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.
JanFebMarAprMayJunJulAugSepOctNovDec224578876421
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.

November Sunshine in Portsmouth

November in Portsmouth brings a gentle decline in sunshine hours, featuring approximately 159 hours of bright light. As autumn deepens, this month marks a notable shift from the sun-drenched days of summer, where July dazzles with around 423 hours of sun. Comparatively, November's sunshine shows an increase from the gloomier months of December and January, highlighting a transitional period. While the month isn't awash in sunlight like its spring counterparts—April and May boasting 344 and 410 hours respectively—it still offers a respite before the winter chill sets in, reminding residents of the vibrant days ahead.

Monthly Sunshine Duration in Portsmouth: November Highlighted

The November sunshine duration represents the total number of hours Portsmouth experiences direct sunlight during the month of November, excluding cloudy or obstructed periods. This chart compares the sunshine duration of November with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec105h146h222h344h410h407h423h386h320h252h159h118h
Data source: Portsmouth November Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Portsmouth During November

In November, the likelihood of enjoying sunny weather in Portsmouth stands at 37%, a modest increase compared to the preceding months like October (30%) and July (42%). As autumn deepens, the chances of sunshine slightly wane from the peak of spring in April (58%), yet they remain higher than in the earlier winter months of January and February, which see mere 21% and 26% chances of sun, respectively. This trend suggests that while November might not boast the sunniest days, it offers a refreshing break from the relentless dreariness of winter that soon follows.

Percentage of Sunny Days in November in Portsmouth

The chart illustrates the percentage of sunny days in Portsmouth throughout the year, with November highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Portsmouth experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%26%38%58%41%30%42%33%37%30%37%22%
Data source: Portsmouth November chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Portsmouth in November

As November settles over Portsmouth, UK, daylight begins to wane, offering just 8 hours of sunlight each day. This marks a noticeable shift from the longer days of summer, where June basked in a generous 16 hours. The transition through the months reveals a comforting rhythm of changing light, with daylight peaking in May and June before gradually receding as autumn deepens. Unlike the earlier months of the year, where February and March herald slight increases, November's daylight remains static, mirroring December’s dimness. This seasonal ebb and flow serves as a reminder of nature’s cycles, inviting residents to cozy up and embrace the shorter days ahead.

Average Daylight Hours in Portsmouth for November

The chart illustrates the variation in daylight duration in Portsmouth throughout the year, with November highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 31m10h 2m11h 55m13h 50m15h 31m16h 23m15h 55m14h 25m12h 34m10h 39m8h 56m8h 2m
Data source: Portsmouth daylight hours, calculated by summing the hours between sunrise and sunset for each day.

November Winds in Portsmouth

As November rolls into Portsmouth, the average wind speed settles at 5.3 m/s (12 mph), marking a noticeable shift from the gustier October conditions. This month typically witnesses a gentle breeze, continuing the trend of diminishing winds from the summer months. After peaking in February with 6.9 m/s (16 mph), the wind gradually softened through the spring and summer, with June and July experiencing the calmest moments at around 4.0 m/s (9 mph). November’s winds offer a refreshing contrast to the calmer summer days, providing a crisp chill that hints at the approaching winter. Overall, while the wind may not be at its most fierce, it maintains a consistent presence in the coastal landscape, inviting residents and visitors alike to embrace the beauty of autumn’s breezy essence.

Average November Wind Speed in Portsmouth

The chart displays monthly wind speed patterns in Portsmouth, with values for each month shown alongside November's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how November's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec6.46.95.84.86.14.04.65.34.86.25.3 m/s6.4
Data source: Portsmouth November wind data, generated using information from the Copernicus Climate Change Service.

How November Weather in Portsmouth Compares to Other Months

The weather in Portsmouth changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of November's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Portsmouth and find detailed weather information for every month.

November and January exhibit notable differences in weather patterns. In November, the average temperature is slightly warmer at 10°C (50°F), with a maximum of 16°C (61°F) and a minimum of 1°C (33°F). This month also sees more precipitation, averaging 87 mm (3.4 in) over approximately 15 days, contributing to a higher humidity of 92%. In contrast, January is cooler, with an average temperature of 7°C (44°F) and a maximum temperature of 13°C (56°F). Precipitation decreases to 68 mm (2.7 in) spread over about 11 days, alongside a slightly lower humidity level of 91%. For more specific insights about the weather in January, you can check Portsmouth weather in January.

November and February present distinctly different weather patterns, with November featuring milder temperatures ranging from a low of 1°C (33°F) to a maximum of 16°C (61°F) and an average of 10°C (50°F). The month experiences considerable precipitation, averaging 87 mm (3.4 in) over approximately 15 days, combined with high humidity at 92%. In contrast, February is colder, with temperatures dipping as low as -3°C (28°F), an average of 7°C (45°F), and a maximum of 13°C (55°F). Although it sees slightly less precipitation at 75 mm (3.0 in) across around 12 days, the humidity remains relatively high at 89%. For more details, you can check out Portsmouth weather in February.

November and March present a fascinating contrast in weather characteristics. In November, temperatures range from a chilly 1°C (33°F) to a mild 16°C (61°F), with an average of 10°C (50°F). The month sees considerable precipitation, averaging 87 mm (3.4 in) across about 15 days, along with a high humidity level of 92%.

In comparison, March typically experiences slightly lower temperatures, with a minimum of -3°C (28°F) and a maximum of 14°C (58°F), averaging around 8°C (47°F). Precipitation in March is also less, with 70 mm (2.7 in) expected over about 13 days, and humidity slightly lower at 86%. For a more detailed look at March weather in Portsmouth, you can check Portsmouth weather in March.

When comparing the weather in November and April, both months experience similar average temperatures around 10°C (50°F), but April typically enjoys a more pleasant max temperature of 19°C (66°F) compared to November's 16°C (61°F). November tends to be gloomier, with higher precipitation levels of 87 mm (3.4 in) over 15 days, while April sees significantly less rainfall at 32 mm (1.3 in) and only 7 rainy days. Additionally, humidity levels are slightly higher in November at 92%, versus 85% in April, making April feel a bit drier and more comfortable overall. For more detailed insights, you can refer to Portsmouth weather in April.

November weather typically sees cooler temperatures, with a minimum of 1°C (33°F) and an average of 10°C (50°F), peaking at 16°C (61°F). It is characterized by higher precipitation levels, averaging 87 mm (3.4 in) over approximately 15 days, contributing to a high humidity of 92%. In contrast, May offers a much milder climate, with temperatures ranging from a minimum of 5°C (41°F) to an average of 13°C (55°F) and a maximum of 22°C (71°F). The month has lower precipitation at 56 mm (2.2 in) spread over about 11 days, and the humidity is notably reduced to 79%. For a detailed look at the weather specifics in May, you can check out Portsmouth weather in May.

November and June present distinctly different weather experiences. In November, temperatures range from a chilly minimum of 1°C (33°F) to a milder average of 10°C (50°F), peaking at 16°C (61°F). The month is characterized by high precipitation levels, with 87 mm (3.4 in) of rain spread over about 15 days, coupled with a humidity level of 92%, making it feel quite damp. In contrast, June offers a much warmer climate, with minimum temperatures starting at 9°C (49°F) and reaching an average of 16°C (61°F), peaking at a pleasant 25°C (76°F). Additionally, June has lower rainfall, amounting to 73 mm (2.9 in) over only 9 days, and a humidity of 80%, resulting in a more comfortable outdoor experience. For more details on this warm month, check out Portsmouth weather in June.

November weather is characterized by cooler temperatures, with average highs around 10°C (50°F) and lows dipping to 1°C (33°F). The month experiences significant precipitation, totaling 87 mm (3.4 in) over about 15 days, accompanied by high humidity levels of 92%. In contrast, July offers much warmer conditions, with average temperatures ranging from 12°C (53°F) at night to a pleasant 25°C (78°F) during the day. Precipitation is also lower in July, totaling 58 mm (2.3 in) over approximately 11 days, and humidity is more comfortable at 71%. For a detailed look at weather specifics, check out Portsmouth weather in July.

In comparing the weather between November and August, notable differences emerge in both temperature and humidity. November typically experiences cooler temperatures, with a minimum of 1°C (33°F) and an average of 10°C (50°F), compared to August's more temperate minimum of 11°C (52°F) and average of 18°C (64°F). Additionally, the maximum temperatures in November reach only 16°C (61°F), which contrasts sharply with August's peak of 26°C (80°F). While both months receive a fair amount of rainfall, November has slightly higher precipitation at 87 mm (3.4 in) over 15 days, while August sees 78 mm (3.1 in) over 12 days. The humidity is also significantly higher in November at 92%, compared to August’s 76%. For more details on August weather, you can visit Portsmouth weather in August.

In comparing the weather between September and November, there is a notable shift in temperature and precipitation patterns. September generally boasts milder conditions with an average temperature of 16°C (61°F), while November sees a drop to an average of 10°C (50°F), highlighting a clear transition towards cooler weather. The maximum temperatures in September can reach up to 24°C (76°F), significantly higher than November's maximum of 16°C (61°F). Additionally, November experiences more precipitation with 87 mm (3.4 in) over 15 days, compared to September's 57 mm (2.2 in) across 10 days. This increase in rainfall, coupled with higher humidity levels in November at 92%, emphasizes the more challenging weather conditions as autumn progresses. For a detailed insight into September's climate, check out Portsmouth weather in September.

In comparing the weather between October and November, a noticeable drop in temperature is observed as November averages a low of 1°C (33°F) compared to October's minimum of 4°C (40°F). While both months are relatively wet, October receives slightly more precipitation at 117 mm (4.6 in) over 16 days, compared to November's 87 mm (3.4 in) across 15 days. Additionally, November has a higher average humidity of 92%, slightly surpassing October's 90%. For a more detailed look at October's conditions, check out Portsmouth weather in October.

November and December present slightly cooler temperatures, with December averaging around 8°C (47°F) compared to November's 10°C (50°F). The maximum temperatures in December also dip to 14°C (57°F) from November's 16°C (61°F). Both months experience high humidity levels of 92%, contributing to a damp atmosphere. However, December tends to see more precipitation, with 118 mm (4.7 in) falling over 16 days, whereas November has 87 mm (3.4 in) spread over 15 days. For more details on December weather specifically, you can visit Portsmouth weather in December.

Compare Portsmouth's Climate with Cities Worldwide

Conclusion: What to Expect From November Weather in Portsmouth

As November settles in, Portsmouth experiences a notable transition in weather, characterized by cooler temperatures and increased moisture. Unlike the warmer months, when sunshine is more plentiful, this month brings a higher frequency of rainfall and significant humidity, reaching up to 92%. The average temperature gently dips, offering a stark contrast to the mildness of late summer and early autumn. With approximately half the month graced by precipitation, November is a time when the city wraps itself in a cozy atmosphere, encouraging residents and visitors to enjoy indoor activities. To learn more about the city's weather patterns, visit Portsmouth Climate.