UV index today  UV Index

UV Index in Portsmouth, GB

UV index


Cloud cover



00.0 ℃


Today's UV index in Portsmouth, United Kingdom United Kingdom will be up to 0.7, indicating low risk of harm from the sun's UV rays for the average person. Check our tips for today to make sure you're safe in the sun.


Today's tips

Today, the UV index suggests low sun danger (0-2) in Portsmouth, reaching up to 0.7. Remember sunglasses and SPF 30+ on sunny days, and be cautious around reflective surfaces like sand, water, and snow for increased UV exposure.

Portsmouth Weather

Read more here about the climate and sun exposure in and around Portsmouth.

UV Index in Portsmouth

The UV index in Portsmouth, United Kingdom varies throughout the year. In summer months like July and August, the UV index reaches higher levels, typically ranging from 6 to 8 (high to very high). It is advisable to protect your skin by wearing sunscreen, a hat, and sunglasses to reduce the risk of sunburn and skin damage.

Weather Seasons

UV index

Portsmouth experiences distinct weather seasons. During winter months from December to February, temperatures can drop to an average of 4-8 °C (39-46 °F). Spring and autumn bring milder weather, with temperatures ranging from 10-15 °C (50-59 °F). Summers are relatively warm, with temperatures averaging around 18-22 °C (64-72 °F). However, weather patterns can be unpredictable, so it is wise to be prepared for changes in temperature and bring appropriate clothing when visiting.

Portsmouth's Climate

Compared to surrounding regions, Portsmouth enjoys a moderate climate due to its coastal location. While it receives mild winters and relatively warm summers like the rest of southern England, its proximity to the sea brings lower temperature extremes. Additionally, the city experiences a slightly higher amount of sunshine throughout the year, providing locals and visitors with ample opportunities to enjoy outdoor activities and explore the beautiful coastline.

Annual Sun Radiation

The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Portsmouth. It's designed to provide you with a better understanding of the yearly weather and sun exposure.


* This page's content about the UV index in Portsmouth (United Kingdom) is for educational and informational purposes only. The developers and data providers are not liable for the accuracy, reliability, or availability of the information. The information is not a substitute for professional medical advice, and the developers and data providers are not medical professionals. Seek advice from a qualified health provider for any medical concerns, and do not disregard medical advice or delay seeking it based on the information provided on this site.