Climateby Month

Santa Maria, CA weather in August

NOAA 1991-2020 normals and daily records · Santa Maria all year

August in Santa Maria: mild and dry. Highs 74°F, lows 55°F, rain is rare. A great month for outdoor plans.

Normal high
74°F
Normal low
55°F
Wet days
0
0.01 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 high73°F75°F
Normal low56°F55°F
Chance of a wet day1%2%
Sunrise / sunset6:11 am / 8:04 pm6:33 am / 7:30 pm
Daylight13.9 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 am56°Fdew point 54°F
  2. 9 am63°Fdew point 55°F
  3. Noon72°Fdew point 56°F
  4. 3 pm71°Fdew point 56°F
  5. 6 pm63°Fdew point 55°F
  6. 9 pm58°Fdew point 55°F

NOAA hourly normals (local standard time) from Santa Maria Public Airport (4 mi away); average wind 6 mph; clear or few clouds in 70% of daytime hours, mostly cloudy or overcast in 17%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F28 of 31
  • Hot dayshigh 90°F or more0 of 31
  • Muggy daysdaily mean dew point 65°F or more0 of 31
  • Wet daysat least 0.01 in of rain or melted snow0 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 0.01 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, 1991-20202015: average high 79°F
  • Coolest August2010: average high 70°F
  • Wettest August2020: 0.06 in
  • Driest August1992: no measurable precipitation
  • Highest reading104°F (August 29, 2009)
  • Lowest reading47°F (August 20, 2007)

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 high73°F74°F75°F
Normal low55°F55°F54°F
Wet days101
Comfortable days282824
Daylight14.2 h13.4 h12.4 h

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

Nearby alternatives in August

How Santa Maria ranks in August

  • Normal high357th warmest of 378 cities; 53rd of 60 in California
  • Wet days44th driest of 378
  • Comfortable days1st most of 341

Heating and cooling

August has 48 heating degree days and 31 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.

Questions

How hot is Santa Maria in August?

The normal high is 74°F and the normal low is 55°F. From 1991 to 2020 the hottest August reading was 104°F (August 29, 2009).

Does it rain a lot in Santa Maria in August?

About 0 days in August have at least 0.01 in of precipitation, and the normal total is 0.01 in. The wettest August in 1991-2020 was in 2020 (0.06 in); the driest was in 1992, with no measurable precipitation.

Is August a good time to visit Santa Maria?

August ranks 3rd of 12 months on our comfort score for Santa Maria (92 out of 100). It has about 28 comfortable days. The best months are June, July and August.

Where the numbers come from

  • Temperature, rain, frost dates and humidity and wind by hour: Santa Maria Public Airport (USW00023273), 3.8 mi S of the city center, 242 ft . NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: Lompoc (USC00045064), 21 mi S of the city center, 75 ft (143 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Cloud cover: Santa Barbara Muni Airport (USW00023190), 50 mi SE of the city center, 9 ft (209 ft lower than the city). NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Santa Maria Pub/Capt G A Hancock Airport (723940-23273), 4.2 mi SSW of the city center, 243 ft . Hourly observations, 1991-2020.