Grantham Weather in September

During September, Grantham experiences pleasant daytime temperatures of 20°C (68°F) and cooler nights around 11°C (52°F). Expect quite a bit of rainfall. Around 62 mm (2.4 in) is typical.

Rainfall in Grantham in September

You can typically expect 12 days of rain this month, averaging around 62 mm (2.4 in). The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Grantham in September

If you're visiting Grantham in September, expect perfect temperatures with highs of 20°C (68°F) and overnight lows of 11°C (52°F). The difference between afternoon and evening temperatures is usually noticeable. With lows of 11°C (52°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Grantham in September

The area enjoys a balanced 139 hours of sunlight, ensuring it's neither too overcast nor too sunny.

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

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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 Grantham's climate page.

Grantham Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 41%  

Precipitation 62 mm (2.4 in)  

Rainy days 12 days  

Humidity 81% *  

Sunshine 139 hours *  

Percentage Sunshine *  

* Data from: Nottingham, the United Kingdom (34 KM, 21 Miles).

What to Wear in Grantham in September

Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Grantham 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

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 Grantham's climate page.

More climate data for Grantham

Temperature Rainfall Sunshine Humidity

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