San Clemente Weather in September

September is one of the perfect months to visit San Clemente, with daytime temperatures of 24°C (75°F) and lows of 17°C (63°F) at night. Do note that quite a bit of rainfall is typical, averaging around 83 mm (3.3 in).

Rainfall in San Clemente in September

Past climate data indicates that roughly 9 days will see rain, totalling around 83 mm (3.3 in) for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in San Clemente in September

Weather in San Clemente is at its perfect in September. Highs reach 24°C (75°F), while nights settle around 17°C (63°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights cool down to 17°C (63°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in San Clemente in September

The month enjoys around 205 hours of sunshine, creating mostly sunny days with good weather conditions.

Average water temperature in September

At 22°C (72°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit San Clemente.

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

San Clemente Temperature in September

Min Temperature 17°C (63°F)  

Max Temperature 24°C (75°F)  

Water Temperature 22°C (72°F) *  

Chance of Rain 31%  

Precipitation 83 mm (3.3 in)  

Rainy days 9 days  

Humidity 76% *  

Sunshine 205 hours *  

Percentage Sunshine 53% *  

* Data from: Rimini, Italy (9 KM, 5 Miles).

What to Wear in San Clemente in September

For San Clemente in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. The water temperature sits at about 22°C (72°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in San Clemente in September

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

Swimming

9/10

Cycling

9/10

Walking

9/10

Barbeque

8/10

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 Italy, check out our San Clemente's climate page.

More climate data for San Clemente

Temperature Rainfall Sunshine Humidity Water Temp

See the full San Clemente climate overview or explore weather in Italy.