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.
Julian Weather in September
September in Julian typically sees daytime highs of 28°C (82°F) and nighttime lows of 14°C (57°F). Minimal rainfall is typical for this month.
Rainfall in Julian in September
This month experiences about 3 days of rain according to historical data, averaging 11 mm (0.4 in). The odd shower may pass through, but it usually doesn't amount to much. A largely dry month overall.
Temperature in Julian in September
September is a excellent month in Julian, with 28°C (82°F) during the day and 14°C (57°F) at night. This kind of day-to-night contrast is typical for this time of year. At 14°C (57°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Julian in September
The month enjoys around 253 hours of sunshine, creating mostly sunny days with good weather conditions.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Julian.
Julian Temperature in September
Min Temperature
14°C (57°F)
Max Temperature
28°C (82°F)
Chance of Rain
10%
Precipitation
11 mm (0.4 in)
Rainy days
3 days
Humidity
74% *
Sunshine
253 hours *
Percentage Sunshine
68% *
* Data from: San Diego, the United States of America (66 KM, 41 Miles).
Julian Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Julian - 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 Julian 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. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Julian in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Swimming10/10 -
Cycling8/10 -
Walking8/10 -
Barbeque10/10 -
Camping10/10 -
Outdoor sports8/10
Julian 3-Day Forecast
More climate data for Julian
Temperature Rainfall Sunshine Humidity
See the full Julian 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
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.