Helensburgh Weather in September

With daytime temperatures of 17°C (63°F) and nighttime lows of 9°C (48°F), September in Helensburgh brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 140 mm (5.5 in) falls on average.

Rainfall in Helensburgh in September

You can expect rain on roughly 21 days based on historical data, averaging 140 mm (5.5 in) for the month. This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Helensburgh in September

In September, Helensburgh gets moderate temperatures, with highs of 17°C (63°F). Nights cool to around 9°C (48°F). Conditions are often most pleasant around the middle of the day. With lows around 9°C (48°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.

Sunshine in Helensburgh in September

The area experiences a moderate amount of sunshine, with approximately 117 hours of sunlight expected. This means a decent mix of sun and overcast.

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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• January
• February
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• October
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For a detailed overview over the year and the best time to visit the United Kingdom, check out our Helensburgh's climate page.

Helensburgh Temperature in September

Min Temperature 9°C (48°F)  

Max Temperature 17°C (63°F)  

Chance of Rain 71%  

Precipitation 140 mm (5.5 in)  

Rainy days 21 days  

Humidity 79% *  

Sunshine 117 hours *  

Percentage Sunshine 29% *  

* Data from: Glasgow, Scotland (24 KM, 15 Miles).

What to Wear in Helensburgh 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. Expect heavy rainfall, so bring good rain protection and waterproof bags. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Helensburgh in September

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

Swimming

5/10

Cycling

5/10

Walking

5/10

Camping

3/10

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 Helensburgh's climate page.

More climate data for Helensburgh

Temperature Rainfall Sunshine Humidity

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