Bethesda Weather in September

With daytime temperatures of 18°C (64°F) and nighttime lows of 10°C (50°F), September in Bethesda brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 99 mm (3.9 in) falls on average.

Rainfall in Bethesda in September

Past climate data indicates that roughly 17 days will see rain, totalling around 99 mm (3.9 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Bethesda in September

September in Bethesda brings moderate temperatures, with highs of 18°C (64°F) and nights around 10°C (50°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. 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 Bethesda in September

The area enjoys a balanced 111 hours of sunlight, ensuring it's neither too overcast nor too sunny.

If you prefer enjoying temperate temperatures and rain-free days, July typically offers 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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• January
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For a detailed overview over the year and the best time to visit the United Kingdom, check out our Bethesda's climate page.

Bethesda Temperature in September

Min Temperature 10°C (50°F)  

Max Temperature 18°C (64°F)  

Chance of Rain 58%  

Precipitation 99 mm (3.9 in)  

Rainy days 17 days  

Sunshine 111 hours *  

Percentage Sunshine *  

* Data from: Bala, the United Kingdom (43 KM, 26 Miles).

What to Wear in Bethesda in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Bethesda in September

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

Swimming

6/10

Cycling

6/10

Walking

6/10

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 Bethesda's climate page.

More climate data for Bethesda

Temperature Rainfall Sunshine

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