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.
Big Bear Lake Weather in August
In Big Bear Lake, August brings high daytime temperatures around 27°C (81°F), with nights cooling to 9°C (48°F). Minimal rainfall is to be expected.
Rainfall in Big Bear Lake in August
Records from the past 30 years suggest around 4 days of rain, with 14 mm (0.6 in) average for the month. Rain is scarce this month and when it does fall, it tends to be light. Unlikely to disrupt plans significantly.
Temperature in Big Bear Lake in August
August is a excellent month in Big Bear Lake, with 27°C (81°F) during the day and 9°C (48°F) at night. Summer occurs in August. Overall, the month follows a fairly predictable daily temperature pattern. With lows around 9°C (48°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.If your ideal day consists of dry skies and pleasant temperatures, May, June, July, August, September and October typically offer the best circumstances for Big Bear Lake.
Big Bear Lake Temperature in August
Min Temperature
9°C (48°F)
Max Temperature
27°C (81°F)
Chance of Rain
13%
Precipitation
14 mm (0.6 in)
Rainy days
4 days
Big Bear Lake Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Big Bear Lake - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Big Bear Lake typically stay consistent throughout August, with daily highs averaging around 27°C (81°F). Nights are pleasant, with lows around 16°C (61°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather records for Big Bear Lake in August
Browse day-by-day weather records for Big Bear Lake spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Big Bear Lake historical weather extremes in August
The extremes listed below come from historical weather data collected in Big Bear Lake from 1976 through 2026.
- Big Bear Lake recorded its highest August temperature of 44°C (111°F) on August 9, 2004.
- On August 3, 2014, Big Bear Lake saw its coldest August day with temperatures maxing out at 14°C (57°F).
- Big Bear Lake registered its coldest August night on August 19, 2021, with temperatures dropping to 0°C (32°F).
Best Places in the United States of America in August
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 August →
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 Big Bear Lake in August
Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. With minimal rainfall expected, you can leave the rain gear at home.
What To Do in Big Bear Lake in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Cycling8/10 -
Walking8/10 -
Camping5/10 -
Outdoor sports8/10
Big Bear Lake 3-Day Forecast
More climate data for Big Bear Lake
See the full Big Bear Lake climate overview or explore weather in the United States of America.
Popular in August
Where to go in August - average daytime high across popular destinations.
Kissimmee
33°C (91°F) Orlando33°C (91°F) Miami Beach32°C (90°F) Destin32°C (90°F) New York City
29°C (84°F) Big Bear Lake
27°C (81°F) Los Angeles
24°C (75°F) San Francisco22°C (72°F) 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.