Climateby Month

Temecula, CA weather in August

NOAA 1991-2020 normals and daily records · Temecula all year

August in Temecula: very hot and dry. Highs 98°F, lows 65°F, about 1 day with rain. This is the peak of the warm season in Temecula. Midday heat is the main thing to plan around.

Normal high
98°F
Normal low
65°F
Wet days
1
0.06 in total
Muggy days
0
dew point 65°F+

How August changes from start to finish

Normal values at the start and end of August
August 1August 31
Normal high98°F97°F
Normal low66°F64°F
Chance of a wet day2%2%
Sunrise / sunset6:01 am / 7:48 pm6:22 am / 7:15 pm
Daylight13.8 h12.9 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).

A typical August day

  1. 6 am65°Fdew point 56°F
  2. 9 am81°Fdew point 55°F
  3. Noon92°Fdew point 52°F
  4. 3 pm93°Fdew point 53°F
  5. 6 pm84°Fdew point 53°F
  6. 9 pm73°Fdew point 55°F

NOAA hourly normals (local standard time) from March AFB (29 mi away); average wind 6 mph; clear or few clouds in 85% of daytime hours, mostly cloudy or overcast in 8%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
  • Hot dayshigh 90°F or more29 of 31
  • Muggy daysdaily mean dew point 65°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow1 of 31
  • Notable rainat least 0.10 in0 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 0.06 in; a dry August brings about 0.0 in and a wet one about 0.01 in (25th and 75th percentiles). Days with half an inch or more are rare.

How August varies from year to year

  • Warmest August, 1991-20201994: average high 105°F
  • Coolest August2014: average high 96°F
  • Wettest August2014: 0.7 in
  • Driest August1991: no measurable precipitation
  • Highest reading115°F (August 5, 1997)
  • Lowest reading49°F (August 11, 1996)

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

JulyAugustSeptember
Normal high97°F98°F93°F
Normal low64°F65°F61°F
Wet days111
Comfortable days002
Daylight14.1 h13.4 h12.4 h

Highs change by +1°F from July and -5°F into September.

Nearby alternatives in August

How Temecula ranks in August

  • Normal high19th warmest of 378 cities; 4th of 60 in California
  • Wet days46th driest of 378
  • Comfortable days245th most of 341

What to pack for Temecula in August

  • Light, breathable clothing – highs near 98°F
  • Layers – afternoons near 98°F but nights near 65°F

Heating and cooling

August has 0 heating degree days and 505 cooling degree days (base 65°F), 14% of the year's total heating and cooling demand.

Questions

How hot is Temecula in August?

The normal high is 98°F and the normal low is 65°F. From 1991 to 2020 the hottest August reading was 115°F (most recently on August 5, 1997).

Does it rain a lot in Temecula in August?

About 1 days in August have at least 0.01 in of precipitation, and the normal total is 0.06 in. The wettest August in 1991-2020 was in 2014 (0.7 in); the driest was in 1991, with no measurable precipitation.

Is August a good time to visit Temecula?

August ranks 12th of 12 months on our comfort score for Temecula (37 out of 100). It has almost no comfortable days and about 29 days at 90°F or hotter. The best months are March and April.

Where the numbers come from

  • Temperature, rain, snowfall and snow depth: Elsinore (USC00042805), 18 mi NW of the city center, 1,268 ft (257 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Frost dates: Fallbrook 5 Ne (USW00053151), 4.5 mi SSW of the city center, 1,140 ft (129 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: March AFB (USW00023119), 29 mi NNW of the city center, 1,516 ft (505 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: March Air Reserve Base (722860-23119), 29 mi NNW of the city center, 1,536 ft (525 ft higher than the city). Hourly observations, 1991-2020.