San Clemente Weather in September
September in San Clemente typically sees daytime highs of 27°C (81°F) and nighttime lows of 16°C (61°F). Minimal rainfall is typical for this month.
Rainfall in San Clemente in September
This month experiences about a single day of rain according to historical data, averaging 3.2 mm (0.1 in). On the rare occasion it rains this month, it usually amounts to very little.
Temperature in San Clemente in September
September in San Clemente is generally perfect, with days reaching 27°C (81°F) and nights settling around 16°C (61°F). Overall, the month follows a fairly predictable daily temperature pattern. Nights cool down to 16°C (61°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. It's the warmest month of the year on average, so summer clothing is the way to go.
Sunshine in San Clemente in September
The month enjoys around 290 hours of sunshine, creating mostly sunny days with good weather conditions.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our San Clemente's climate page.
San Clemente Temperature in September
Min Temperature
16°C (61°F)
Max Temperature
27°C (81°F)
Chance of Rain
3%
Precipitation
3.2 mm (0.1 in)
Rainy days
a single day
Sunshine
290 hours *
Percentage Sunshine
*
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in San Clemente in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Almost no rain is expected, so no need to bring rain gear. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in San Clemente in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our San Clemente's climate page.
See the full San Clemente climate overview or explore weather in the United States of America.
