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San Diego, CA Weather on August 27

San Diego hits 89°F record on August 27, 2009

August 27 in San Diego typically brings mild summer warmth with an average high of 78°F and low of 67°F. However, in 2009 the city experienced an exceptional spike when the temperature soared to 89°F, the highest recorded for this date across 55 years of historical data. The coldest August 27 on record occurred in 1975 when temperatures dropped to 59°F, showcasing the range of variability possible even during late summer in Southern California.

By Weather On This Day|
Avg High
78°F
Avg Low
67°F
Record High
89°F
2015
Record Low
59°F
1975
San Diego, CA on August 27 — Temperature History40°F60°F80°F100°F19801990200020102020HighLow

What to Expect on August 27

Planning for August 27th in San Diego, CA? Great weather for outdoor activities.

Frequently Asked Questions

What was the warmest August 27 ever in San Diego?

The warmest August 27 in San Diego, CA reached 89°F in 2015. That is 11°F above the long-term average high of 78°F.

What was the coldest August 27 ever in San Diego?

The coldest August 27 in San Diego, CA dropped to 59°F in 1975. That is 8°F below the long-term average low of 67°F.

What is the average temperature on August 27 in San Diego?

On August 27, San Diego averages a high of 78°F and a low of 67°F based on 55 years of NOAA weather observations from SAN DIEGO INTL AP.

How many years of weather data are available for August 27 in San Diego?

We have 55 years of weather records for August 27 in San Diego, CA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.

August 27 Weather History in San Diego

YearHighLowPrecipSnow
202580°F67°F0"--
202476°F68°F0"--
202379°F65°F0"--
202277°F70°F0"--
202179°F68°F0"--
202081°F70°F0"--
201979°F69°F0"--
201879°F71°F0"--
201778°F68°F0"--
201675°F67°F0"--
201589°F73°F0"--
201484°F70°F0"--
201382°F68°F0"--
201280°F67°F0"--
201180°F69°F0"--
201069°F62°F0"--
200989°F68°F0"--
200876°F69°F0"--
200779°F70°F0"--
200680°F67°F0"--
200582°F71°F0"--
200474°F67°F0"--
200378°F68°F0"--
200268°F62°F0"--
200172°F62°F0"--
200073°F68°F0"--
199975°F65°F0"--
199876°F66°F0"--
199780°F69°F0"--
199679°F64°F0"--
199582°F65°F0"--
199484°F69°F0"--
199377°F68°F0"--
199283°F66°F0"--
199175°F65°F0"--
199078°F64°F0"--
198974°F65°F0"--
198879°F68°F0"--
198773°F63°F0"--
198682°F68°F0"--
198584°F67°F0"--
198482°F73°F0"--
198385°F72°F0"--
198273°F69°F0"--
198188°F74°F0"--
198074°F68°F0"--
197975°F67°F0"--
197878°F68°F0"--
197774°F69°F0"--
197675°F67°F0"--
197573°F59°F0"--
197476°F63°F0"--
197374°F64°F0"--
197274°F67°F0"--
197184°F68°F0"--

Based on 55 years of data from NOAA station: SAN DIEGO INTL AP

How Has August 27 Changed?

The last decade has been 2.1°F warmer on this date compared to 20-30 years ago.

Monthly Climate Averages

Historical temperature and precipitation averages for San Diego, CA, based on 55+ years of weather data.

Warmest MonthSeptemberAvg High: 76°F / Low: 66°F
Coldest MonthDecemberAvg High: 65°F / Low: 49°F
Jan
65°/ 49°
💧 0.3"
Feb
65°/ 50°
💧 0.3"
Mar
66°/ 53°
💧 0.3"
Apr
68°/ 56°
💧 0.2"
May
69°/ 59°
💧 0.1"
Jun
71°/ 62°
💧 0.1"
Jul
75°/ 66°
💧 0.1"
Aug
76°/ 67°
💧 0.2"
Sep
76°/ 66°
💧 0.1"
Oct
73°/ 61°
💧 0.2"
Nov
69°/ 54°
💧 0.2"
Dec
65°/ 49°
💧 0.3"

Temperatures in Fahrenheit. Precipitation and snowfall in inches.

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