Encinitas Weather in September
Average highs run from 76°F on September 1 to 74°F on September 30, and lows from 65°F to 62°F. Normal precipitation for the month is 0.11 in over about 2 wet days.
September day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 76°F
- Average low
- 64°F
- Precipitation
- 0.11 in
- Record high
- 101°FSep 6, 2020
- Record low
- 54°FSep 6, 2005
- Chance of a freeze
- 0%
- Days of 90°F or more
- 0.7
- Daylight
- 12 h 50 min to 11 h 52 min
- Cloud cover
- 29%
- Humidity
- 72%
- Dew point
- 60°F
- Wind
- 6.0 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 76°F | 65°F | 89°F 2017 | 59°F 2004 | 4% |
| Sep 2 | 76°F | 65°F | 92°F 2007 | 59°F 1999 | 4% |
| Sep 3 | 76°F | 65°F | 95°F 1998 | 57°F 1999 | 4% |
| Sep 4 | 76°F | 65°F | 96°F 2022 | 58°F 2000 | 5% |
| Sep 5 | 76°F | 65°F | 100°F 2004 | 57°F 2005 | 5% |
| Sep 6 | 76°F | 65°F | 101°F 2020 | 54°F 2005 | 5% |
| Sep 7 | 76°F | 65°F | 99°F 2026 | 61°F 2000 | 5% |
| Sep 8 | 76°F | 65°F | 94°F 2026 | 60°F 1999 | 5% |
| Sep 9 | 76°F | 64°F | 96°F 2026 | 56°F 2000 | 5% |
| Sep 10 | 76°F | 64°F | 94°F 2015 | 58°F 2000 | 6% |
| Sep 11 | 76°F | 64°F | 86°F 2015 | 58°F 1999 | 6% |
| Sep 12 | 76°F | 64°F | 88°F 2000 | 58°F 1999 | 6% |
| Sep 13 | 76°F | 64°F | 85°F 2000 | 58°F 2005 | 6% |
| Sep 14 | 76°F | 64°F | 94°F 2012 | 57°F 2001 | 7% |
| Sep 15 | 76°F | 64°F | 86°F 2014 | 57°F 2016 | 7% |
| Sep 16 | 76°F | 64°F | 84°F 2020 | 56°F 2016 | 7% |
| Sep 17 | 76°F | 64°F | 87°F 2014 | 56°F 2006 | 7% |
| Sep 18 | 76°F | 64°F | 89°F 2020 | 58°F 2005 | 8% |
| Sep 19 | 76°F | 63°F | 80°F 2006 | 58°F 1999 | 8% |
| Sep 20 | 76°F | 63°F | 89°F 2015 | 56°F 1999 | 8% |
| Sep 21 | 75°F | 63°F | 89°F 2004 | 55°F 2007 | 8% |
| Sep 22 | 75°F | 63°F | 88°F 2004 | 56°F 2005 | 9% |
| Sep 23 | 75°F | 63°F | 89°F 2009 | 57°F 2017 | 9% |
| Sep 24 | 75°F | 63°F | 85°F 2009 | 56°F 2017 | 9% |
| Sep 25 | 75°F | 63°F | 86°F 2016 | 56°F 2005 | 9% |
| Sep 26 | 75°F | 62°F | 89°F 2010 | 58°F 2005 | 10% |
| Sep 27 | 75°F | 62°F | 94°F 2016 | 56°F 2013 | 10% |
| Sep 28 | 75°F | 62°F | 88°F 2010 | 56°F 1998 | 10% |
| Sep 29 | 75°F | 62°F | 92°F 1999 | 54°F 2001 | 10% |
| Sep 30 | 74°F | 62°F | 92°F 1999 | 55°F 2019 | 11% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- September 1
- sunrise 6:24 AM, sunset 7:14 PM
- September 30
- sunrise 6:43 AM, sunset 6:35 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00003177 (Carlsbad Palomar AP), public domain. Records: NOAA GHCN-Daily, station USW00003177, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.