Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Rancho Bernardo Weather in September
Rancho Bernardo in September sees very high temperatures, with highs around 31°C (88°F) and overnight lows of 16°C (61°F). With just 3.8 mm (0.1 in) of rainfall on average, rain is rarely an issue.
Rainfall in Rancho Bernardo in September
Climate statistics over the past 30 years suggest around a single day of rain, with 3.8 mm (0.1 in) average for the month. On the rare occasion it rains this month, it usually amounts to very little.
Temperature in Rancho Bernardo in September
Rancho Bernardo in September has excellent weather. Days reach 31°C (88°F) and nights cool to 16°C (61°F). For most visitors, the main thing to prepare for is the heat during the day. With overnight lows of 16°C (61°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 Rancho Bernardo in September
The month enjoys around 253 hours of sunshine, creating mostly sunny days with good weather conditions.September in Rancho Bernardo has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Rancho Bernardo Temperature in September
Min Temperature
16°C (61°F)
Max Temperature
31°C (88°F)
Chance of Rain
3%
Precipitation
3.8 mm (0.1 in)
Rainy days
a single day
Humidity
74% *
Sunshine
253 hours *
Percentage Sunshine
68% *
* Data from: San Diego, the United States of America (35 KM, 21 Miles).
Rancho Bernardo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Rancho Bernardo - and find the best time to visit.
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
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Rancho Bernardo in September
Warm but pleasant conditions in Rancho Bernardo in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Dry conditions mean you won't need to worry about rain protection. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Rancho Bernardo in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming10/10 -
Cycling8/10 -
Walking8/10 -
Barbeque10/10 -
Camping10/10 -
Outdoor sports8/10
Rancho Bernardo 3-Day Forecast
More climate data for Rancho Bernardo
Temperature Rainfall Sunshine Humidity
See the full Rancho Bernardo climate overview or explore weather in the United States of America.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
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