Denham Weather in September

Denham in September averages 20°C (68°F) during the day and 11°C (52°F) at night. Some rainfall is typical for this time of year.

Rainfall in Denham in September

You can typically expect 12 days of rain this month, averaging around 55 mm (2.2 in). Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Denham in September

If you're visiting Denham in September, expect perfect temperatures with highs of 20°C (68°F) and overnight lows of 11°C (52°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Denham in September

The area enjoys a balanced 155 hours of sunlight, ensuring it's neither too overcast nor too sunny.

Wind Speed in Denham in September

Average wind speeds reach 3 m/s (6 knots) in September, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Denham.

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Check the conditions for any month of the year.

• January
• February
• March
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• May
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• August

• September
• October
• November
• December

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

Denham Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 40%  

Precipitation 55 mm (2.2 in)  

Rainy days 12 days  

Humidity 73% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 155 hours *  

Percentage Sunshine 40% *  

* Data from: London, the United Kingdom (10 KM, 6 Miles).

What to Wear in Denham in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Denham in September

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

Swimming

6/10

Cycling

10/10

Walking

10/10

Barbeque

7/10

Camping

8/10

Outdoor sports

10/10

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 Denham's climate page.

More climate data for Denham

Temperature Rainfall Sunshine Humidity Wind Speed

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