Thornhill Weather in September

September in Thornhill typically sees daytime highs of 16°C (61°F) and nighttime lows of 9°C (48°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Thornhill in September

Historically, September sees about 19 days of rain, with a monthly average of 101 mm (4 in). Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.

Temperature in Thornhill in September

Thornhill in September gets highs of 16°C (61°F) during the day and drops to 9°C (48°F) at night. Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 9°C (48°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in Thornhill in September

The area experiences limited sunny days, amounting to roughly 95 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, July and August typically offer the best weather for Thornhill.

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 Thornhill's climate page.

Thornhill Temperature in September

Min Temperature 9°C (48°F)  

Max Temperature 16°C (61°F)  

Chance of Rain 62%  

Precipitation 101 mm (4 in)  

Rainy days 19 days  

Humidity 82% *  

Sunshine 95 hours *  

Percentage Sunshine 26% *  

* Data from: Eskdalemuir, the United Kingdom (36 KM, 22 Miles).

What to Wear in Thornhill in September

For Thornhill in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Thornhill in September

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

Swimming

4/10

Cycling

5/10

Walking

5/10

Camping

3/10

Outdoor sports

9/10

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 Thornhill's climate page.

More climate data for Thornhill

Temperature Rainfall Sunshine Humidity

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