Boo Weather in September

September in Boo averages 16°C (61°F) during the day and 10°C (50°F) at night. Around 58 mm (2.3 in) of rainfall is typical for this time of year.

Rainfall in Boo in September

Rain is expected on roughly 15 days, totalling around 58 mm (2.3 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Boo in September

Boo in September gets highs of 16°C (61°F) during the day and drops to 10°C (50°F) at night. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 10°C (50°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Boo in September

The month experiences a moderate amount of sunlight, with 171 hours of sunshine. This provides a nice balance between sunshine and clouds.

Wind Speed in Boo in September

Average wind speeds reach 3 m/s (6 knots) in September, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

Average water temperature in September

With water at 15°C (59°F), it's on the cooler side. Keen swimmers won't be put off, but those who prefer warm water may find it less enjoyable.

Should you favor a climate that's both dry and comfortably warm, July and August typically offer the most agreeable 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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Check the conditions for any month of the year.

• January
• February
• March
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• May
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• September
• October
• November
• December

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

Boo Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 16°C (61°F)  

Water Temperature 15°C (59°F) *  

Chance of Rain 48%  

Precipitation 58 mm (2.3 in)  

Rainy days 15 days  

Humidity 78% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 171 hours *  

Percentage Sunshine *  

* Data from: Stockholm, Sweden (17 KM, 11 Miles).

What to Wear in Boo 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. Expect water temperatures of around 15°C (59°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Boo 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

Barbeque

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 Sweden, check out our Boo's climate page.

More climate data for Boo

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Boo climate overview or explore weather in Sweden.