Big Bear Lake, CA weather in August
In August, Big Bear Lake sees highs around 79°F and lows around 50°F: mild and dry. Expect about 3 wet days. It is one of the warmest months in Big Bear Lake. Great for outdoor plans.
- Normal high
- 79°F
- Normal low
- 50°F
- Wet days
- 3
- 0.8 in total
- Daylight
- 13.4 h
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 80°F | 77°F |
| Normal low | 51°F | 48°F |
| Chance of a wet day | 9% | 10% |
| Sunrise / sunset | 5:58 am / 7:49 pm | 6:20 am / 7:15 pm |
| Daylight | 13.8 h | 12.9 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
What kind of days to expect
- Comfortable dayshigh 65-80°F (temperature only: no humidity station nearby)16 of 31
- Hot dayshigh 90°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow3 of 31
- Notable rainat least 0.10 in2 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per August, counted from daily records for each year 1991-2020.
Rain in August
Normal precipitation is 0.8 in; a dry August brings about 0.1 in and a wet one about 1.5 in (25th and 75th percentiles). About 1 day brings half an inch or more.
How August varies from year to year
- Warmest August, 1991-20202002: average high 83°F
- Coolest August2014: average high 75°F
- Wettest August2003: 4.6 in
- Driest August1993: no measurable precipitation
- Highest reading90°F (August 10, 2004)
- Lowest reading34°F (August 30, 2010)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
August compared with July and September
| July | August | September | |
|---|---|---|---|
| Normal high | 80°F | 79°F | 73°F |
| Normal low | 51°F | 50°F | 44°F |
| Wet days | 3 | 3 | 2 |
| Comfortable days | 13 | 16 | 26 |
| Daylight | 14.2 h | 13.4 h | 12.4 h |
Highs change by -1°F from July and -6°F into September.
Nearby alternatives in August
- Warmer: San Bernardino, CA24 mi · high 96°F · 1 wet day
- Cooler: Oceanside, CA77 mi · high 71°F · 0 wet days
How Big Bear Lake ranks in August
- Normal high323rd warmest of 378 cities; 45th of 60 in California
- Wet days68th driest of 378
What to pack for Big Bear Lake in August
- Layers – afternoons near 79°F but nights near 50°F
Heating and cooling
August has 60 heating degree days and 32 cooling degree days (base 65°F), 1% of the year's total heating and cooling demand.
Questions
How hot is Big Bear Lake in August?
The normal high is 79°F and the normal low is 50°F. From 1991 to 2020 the hottest August reading was 90°F (most recently on August 10, 2004).
Does it rain a lot in Big Bear Lake in August?
About 3 days in August have at least 0.01 in of precipitation, and the normal total is 0.8 in. The wettest August in 1991-2020 was in 2003 (4.6 in); the driest was in 1993, with no measurable precipitation.
Is August a good time to visit Big Bear Lake?
August ranks 4th of 12 months on our comfort score for Big Bear Lake (75 out of 100). It has about 16 comfortable days (judged by temperature only). The best month is September.
Where the numbers come from
- Temperature, rain, snowfall and frost dates: Big Bear Lake (USC00040741), 0.3 mi W of the city center, 6,753 ft . NOAA normals and daily records, 1991-2020.
- Not available for this location: snow depth, humidity and wind by hour, cloud cover and daily humidity and wind (no station close enough or similar enough in elevation).