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San Diego, CA Weather on April 9
San Diego hit 82°F on April 9, 2014 — its warmest date ever recorded
April 9 in San Diego typically brings mild spring weather with highs around 68°F and lows near 56°F. The city's 55-year temperature record shows extremes ranging from a record 82°F in 2014 to a chilly 47°F low in 2011, illustrating the notable variability possible even during this generally pleasant season.
What to Expect on April 9
Planning for April 9th in San Diego, CA? Great weather for outdoor activities.
Frequently Asked Questions
What was the warmest April 9 ever in San Diego?
The warmest April 9 in San Diego, CA reached 82°F in 2014. That is 14°F above the long-term average high of 68°F.
What was the coldest April 9 ever in San Diego?
The coldest April 9 in San Diego, CA dropped to 47°F in 2011. That is 9°F below the long-term average low of 56°F.
What is the average temperature on April 9 in San Diego?
On April 9, San Diego averages a high of 68°F and a low of 56°F based on 55 years of NOAA weather observations from SAN DIEGO INTL AP.
How many years of weather data are available for April 9 in San Diego?
We have 55 years of weather records for April 9 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.
April 9 Weather History in San Diego
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 72°F | 55°F | 0" | -- |
| 2024 | 73°F | 49°F | 0" | -- |
| 2023 | 63°F | 54°F | 0" | -- |
| 2022 | 70°F | 59°F | 0" | -- |
| 2021 | 70°F | 59°F | 0" | -- |
| 2020 | 64°F | 55°F | 2.95" | -- |
| 2019 | 71°F | 62°F | 0" | -- |
| 2018 | 77°F | 59°F | 0" | -- |
| 2017 | 68°F | 55°F | 0" | -- |
| 2016 | 68°F | 59°F | 0.03" | -- |
| 2015 | 69°F | 56°F | 0" | -- |
| 2014 | 82°F | 61°F | 0" | -- |
| 2013 | 68°F | 55°F | 0" | -- |
| 2012 | 71°F | 53°F | 0" | -- |
| 2011 | 61°F | 47°F | 0.36" | -- |
| 2010 | 65°F | 57°F | 0" | -- |
| 2009 | 65°F | 56°F | 0" | -- |
| 2008 | 60°F | 53°F | 0" | -- |
| 2007 | 64°F | 58°F | 0" | -- |
| 2006 | 65°F | 54°F | 0" | -- |
| 2005 | 63°F | 56°F | 0" | -- |
| 2004 | 69°F | 61°F | 0" | -- |
| 2003 | 74°F | 56°F | 0" | -- |
| 2002 | 65°F | 58°F | 0" | -- |
| 2001 | 59°F | 48°F | 0.1" | -- |
| 2000 | 66°F | 58°F | 0" | -- |
| 1999 | 60°F | 52°F | 0" | -- |
| 1998 | 66°F | 52°F | 0" | -- |
| 1997 | 64°F | 57°F | 0" | -- |
| 1996 | 64°F | 58°F | 0" | -- |
| 1995 | 66°F | 55°F | 0" | -- |
| 1994 | 62°F | 55°F | 0.1" | -- |
| 1993 | 71°F | 55°F | 0" | -- |
| 1992 | 70°F | 61°F | 0" | -- |
| 1991 | 79°F | 55°F | 0" | -- |
| 1990 | 68°F | 55°F | 0" | -- |
| 1989 | 67°F | 60°F | 0" | -- |
| 1988 | 72°F | 59°F | 0" | -- |
| 1987 | 80°F | 57°F | 0" | -- |
| 1986 | 69°F | 54°F | 0" | -- |
| 1985 | 65°F | 58°F | 0" | -- |
| 1984 | 70°F | 60°F | 0" | -- |
| 1983 | 67°F | 55°F | 0" | -- |
| 1982 | 72°F | 59°F | 0" | -- |
| 1981 | 66°F | 59°F | 0" | -- |
| 1980 | 76°F | 60°F | 0" | -- |
| 1979 | 61°F | 59°F | 0.03" | -- |
| 1978 | 66°F | 52°F | 0" | -- |
| 1977 | 66°F | 56°F | 0" | -- |
| 1976 | 67°F | 56°F | 0" | -- |
| 1975 | 61°F | 51°F | 1.04" | -- |
| 1974 | 65°F | 56°F | 0.03" | -- |
| 1973 | 81°F | 54°F | 0" | -- |
| 1972 | 71°F | 56°F | 0" | -- |
| 1971 | 69°F | 54°F | 0" | -- |
Based on 55 years of data from NOAA station: SAN DIEGO INTL AP
How Has April 9 Changed?
The last decade has been 2.8°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.
Temperatures in Fahrenheit. Precipitation and snowfall in inches.