Horsham Weather in September

Horsham in September sees high temperatures, with highs around 25°C (77°F) and overnight lows of 14°C (57°F). Rainfall is fairly high at around 108 mm (4.3 in) on average, so pack waterproofs just in case.

Rainfall in Horsham in September

Past climate data indicates that roughly 8 days will see rain, totalling around 108 mm (4.3 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Horsham in September

Horsham in September gets highs of 25°C (77°F) during the day and drops to 14°C (57°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 14°C (57°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Horsham in September

There are approximately 218 hours of sunshine this month, resulting in mostly clear days.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Horsham.

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• January
• February
• March
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• October
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• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Horsham's climate page.

Horsham Temperature in September

Min Temperature 14°C (57°F)  

Max Temperature 25°C (77°F)  

Chance of Rain 27%  

Precipitation 108 mm (4.3 in)  

Rainy days 8 days  

Humidity 72% *  

Sunshine 218 hours *  

Percentage Sunshine 59% *  

* Data from: Philadelphia, the United States of America (25 KM, 15 Miles).

What to Wear in Horsham in September

Warm but pleasant conditions in Horsham in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Horsham in September

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

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

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 States of America, check out our Horsham's climate page.

More climate data for Horsham

Temperature Rainfall Sunshine Humidity

See the full Horsham climate overview or explore weather in the United States of America.