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 perfect 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.
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 Big Bear Lake's climate page.
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
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 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 2025.
- 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
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tolerable
unpleasant
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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.
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 Big Bear Lake's climate page.
See the full Big Bear Lake climate overview or explore weather in the United States of America.
