Isleworth Weather in December

December in Isleworth averages 9°C (48°F) during the day and 3°C (37°F) at night. Quite a bit of rainfall is typical this month, with around 63 mm (2.5 in) on average. An umbrella is a good idea.

Rainfall in Isleworth in December

Typically, about 15 days will experience rainfall, with an average of 63 mm (2.5 in) for the month. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.

Temperature in Isleworth in December

December in Isleworth brings typical temperatures with highs around 9°C (48°F) and lows of 3°C (37°F). The month of December belongs to the winter season. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. With overnight lows of 3°C (37°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Isleworth in December

The city usually sees around 54 hours of sunlight, indicating fewer sunny days.

Wind Speed in Isleworth in December

In December, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.

December in Isleworth can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Isleworth's climate page.

Isleworth Temperature in December

Min Temperature 3°C (37°F)  

Max Temperature 9°C (48°F)  

Chance of Rain 51%  

Precipitation 63 mm (2.5 in)  

Rainy days 15 days  

Humidity 81% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 54 hours *  

Percentage Sunshine 21% *  

* Data from: London, the United Kingdom (8 KM, 5 Miles).

What to Wear in Isleworth in December

Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Isleworth in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

4/10

Walking

4/10

Camping

4/10

Outdoor sports

4/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Isleworth's climate page.

More climate data for Isleworth

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Isleworth climate overview or explore weather in the United Kingdom.