Altarnun Weather in September

Altarnun in September sees pleasant temperatures, with highs around 19°C (66°F) and overnight lows of 11°C (52°F). It's the driest month of the year, with very little rainfall to worry about.

Rainfall in Altarnun in September

This is the driest month of the year. On average, there are about 16 days with rain during this month, averaging 74 mm (2.9 in). Rain falls on many days this month, but usually in relatively small amounts. A light waterproof is more useful than a heavy umbrella.

Temperature in Altarnun in September

In September, expect pleasant temperatures in Altarnun, with highs of 19°C (66°F) and lows of 11°C (52°F) at night. September is part of the summer season. Conditions are often most pleasant around the middle of the day. 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 Altarnun in September

You can expect a moderate amount of sunlight, with approximately 162 hours. This means a pleasant mix of sun and overcast.

For Altarnun itself, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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

Altarnun Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 53%  

Precipitation 74 mm (2.9 in)  

Rainy days 16 days  

Humidity 83% *  

Sunshine 162 hours *  

Percentage Sunshine *  

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

What to Wear in Altarnun 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Altarnun in September

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

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

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 Altarnun's climate page.

More climate data for Altarnun

Temperature Rainfall Sunshine Humidity

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