San Clemente Weather in September

September is one of the excellent 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 excellent 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.