Lower Swanwick Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Lower Swanwick.
Climate overview of Lower Swanwick
The climate in Lower Swanwick, Hampshire, United Kingdom, is marked by large temperature swings across the seasons, ranging from 22°C (72°F) in July to 9°C (48°F) in January.
The city receives around 813 mm (32 in) of rainfall per year. It experiences warm summers and cold winters. November is the wettest month and March the driest. The sunniest month is July, with 7.4 hours of sunshine per day on average.
Lower Swanwick Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Lower Swanwick - and find the best time to visit.
Monthly Temperature in Lower Swanwick
In Lower Swanwick, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 22°C (72°F) in July to a chilly 9°C (48°F) in January.
Nighttime temperatures range from 14°C (57°F) in July to 3°C (37°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Lower Swanwick
On average, Lower Swanwick receives a reasonable amount of rainfall, with an annual precipitation of 813 mm (32 in). The wettest period in Lower Swanwick occurs in November, which receives around 84 mm (3.3 in) of precipitation. During the driest month, March, Lower Swanwick experiences moderate rainfall, totaling 54 mm (2.1 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Lower Swanwick Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Lower Swanwick
In Lower Swanwick, summer days are longer and more sunny, with daily sunshine hours peaking at 7.4 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.8 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Lower Swanwick
The mean water temperature over the year ranges from 9°C (48°F) in March to 17°C (63°F) in September.
Water temperature over the year
Humidity in Lower Swanwick by Month
The city experiences its highest humidity in January, reaching 91%. In April, the humidity drops to its lowest level at 73%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Lower Swanwick
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June, July, August and September
- Warmest weather: July and August
- Most sunshine: May, June and July
- Fewest rainy days: June, July, August and September
- Warmest water temperature: August, September and October, although the water may still feel cool.
- Seasonal pattern: Warm summers and cold winters
Frequently asked questions about the climate in Lower Swanwick
What is the best time to visit Lower Swanwick?
June, July, August and September typically offer the most optimal weather in Lower Swanwick. In contrast, January, February and December tend to have less optimal conditions. Lower Swanwick has warm summers and cold winters.
What temperatures can I expect in Lower Swanwick?
Daytime highs range from 9°C (48°F) in January to 22°C (72°F) in July. Nighttime lows range from 3°C (37°F) to 14°C (57°F). Temperatures vary considerably through the year.
How much rain does Lower Swanwick get?
Annual rainfall is around 813 mm (32 in). November is the wettest month with 84 mm (3.3 in), while March is the driest with 54 mm (2.1 in).
How sunny is Lower Swanwick?
Lower Swanwick receives around 1,694 hours of sunshine per year. July is the sunniest month with 222 hours, while December is the cloudiest with just 54 hours.
Lower Swanwick 3-Day Forecast
Lower Swanwick 3-Day Forecast
Lower Swanwick on the map
Lower Swanwick is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
London
23°C (73°F) Bath22°C (72°F) York22°C (72°F) Manchester
21°C (70°F) Edinburgh
19°C (66°F) Glasgow19°C (66°F) Torquay20°C (68°F) Blackpool19°C (66°F) 
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