Uusikaupunki Weather in September

Uusikaupunki in September sees moderate temperatures, with highs around 16°C (61°F) and overnight lows of 10°C (50°F). Rainfall is fairly high at around 66 mm (2.6 in) on average, so pack waterproofs just in case.

Rainfall in Uusikaupunki in September

The climate data from previous years indicates about 16 days of rain, averaging 66 mm (2.6 in) for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.

Temperature in Uusikaupunki in September

If you're visiting Uusikaupunki in September, expect highs of 16°C (61°F) and overnight lows around 10°C (50°F). The difference between afternoon and evening temperatures is usually noticeable. With lows of 10°C (50°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 Uusikaupunki in September

With about 154 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

For Uusikaupunki 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 Finland, check out our Uusikaupunki's climate page.

Uusikaupunki Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 16°C (61°F)  

Chance of Rain 53%  

Precipitation 66 mm (2.6 in)  

Rainy days 16 days  

Sunshine 154 hours *  

Percentage Sunshine *  

* Data from: Turku, Finland (60 KM, 37 Miles).

What to Wear in Uusikaupunki in September

The weather can be unpredictable in September, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Rain is likely on several days, so bring a good rain jacket. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Uusikaupunki in September

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

Swimming

5/10

Cycling

6/10

Walking

6/10

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 Finland, check out our Uusikaupunki's climate page.

More climate data for Uusikaupunki

Temperature Rainfall Sunshine

See the full Uusikaupunki climate overview or explore weather in Finland.