Northolt Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Northolt.
Climate overview of Northolt
The climate in Northolt, United Kingdom, is marked by large temperature swings across the seasons, ranging from 23°C (73°F) in July to 9°C (48°F) in January.
Northolt sees a moderate amount of rain/snowfall, totalling around 716 mm (28 in) per year. It experiences warm summers and cold winters, creating some seasonal variation. July is the sunniest month, averaging 7.3 hours of sunshine per day.
Northolt Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Northolt - and find the best time to visit.
Monthly Temperature in Northolt
In Northolt, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 23°C (73°F) in July, the warmest time of the year, to a chilly 9°C (48°F) during cooler months like January.
At night, you can expect temperatures ranging from 14°C (57°F) in July to around 3°C (37°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Northolt
On average, Northolt receives a reasonable amount of rain/snowfall, with an annual precipitation of 716 mm (28 in). Year-round, Northolt has a balanced climate with minimal variation in precipitation. The difference between the wettest month, November, with 67 mm (2.6 in), and the driest month, March, with 48 mm (1.9 in), is minimal. For more details, please visit our Northolt 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 Northolt
Seasonal changes in sunshine hours are quite dramatic in Northolt. While July receives considerable daily sunshine with up to 7.3 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.8 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Northolt by Month
The relative humidity is high throughout the year in Northolt.
The city experiences its highest humidity in November, reaching 81%. In April, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Northolt
The average wind speed over the year ranges from 3 m/s (6 knots) to 4 m/s (8 knots). It is lower in May, June, July, August, September, October and November and higher in January, February, March, April and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Northolt
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 and July
- Seasonal pattern: Warm summers and cold winters
Frequently asked questions about the climate in Northolt
What is the best time to visit Northolt?
June, July, August and September typically offer the most optimal weather in Northolt. In contrast, January, February and December tend to have less optimal conditions. Northolt has warm summers and cold winters.
What temperatures can I expect in Northolt?
Daytime highs range from 9°C (48°F) in January to 23°C (73°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 Northolt get?
Annual rainfall is around 716 mm (28 in). November is the wettest month with 67 mm (2.6 in), while March is the driest with 48 mm (1.9 in).
How sunny is Northolt?
Northolt receives around 1,675 hours of sunshine per year. July is the sunniest month with 219 hours, while December is the cloudiest with just 54 hours.
Northolt 3-Day Forecast
Northolt on the map
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