Morro Bay Weather in May
Average highs run from 67°F on May 1 to 67°F on May 31, and lows from 50°F to 53°F. Normal precipitation for the month is 0.42 in over about 2 wet days.
May day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
May at a glance
- Average high
- 67°F
- Average low
- 52°F
- Precipitation
- 0.42 in
- Record high
- 103°FMay 15, 2014
- Record low
- 35°FMay 15, 1999
- Chance of a freeze
- 0%
- Daylight
- 13 h 38 min to 14 h 23 min
- Cloud cover
- 32%
- Humidity
- 79%
- Dew point
- 50°F
- Wind
- 11.2 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| May 1 | 67°F | 50°F | 93°F 2014 | 41°F 1999 | 10% | 0% |
| May 2 | 67°F | 51°F | 99°F 2004 | 39°F 2011 | 9% | 0% |
| May 3 | 67°F | 51°F | 98°F 2013 | 42°F 2008 | 9% | 0% |
| May 4 | 67°F | 51°F | 92°F 2011 | 40°F 2001 | 9% | 0% |
| May 5 | 67°F | 51°F | 82°F 2011 | 40°F 2001 | 9% | 0% |
| May 6 | 67°F | 51°F | 89°F 2020 | 41°F 1999 | 8% | 0% |
| May 7 | 67°F | 51°F | 92°F 2007 | 45°F 2000 | 8% | 0% |
| May 8 | 67°F | 51°F | 96°F 2007 | 42°F 2002 | 8% | 0% |
| May 9 | 67°F | 51°F | 89°F 2025 | 37°F 2003 | 8% | 0% |
| May 10 | 67°F | 51°F | 87°F 2025 | 38°F 2002 | 7% | 0% |
| May 11 | 67°F | 51°F | 83°F 2013 | 38°F 2002 | 7% | 0% |
| May 12 | 67°F | 52°F | 89°F 2014 | 40°F 2000 | 7% | 0% |
| May 13 | 67°F | 52°F | 95°F 2014 | 39°F 2000 | 7% | 0% |
| May 14 | 67°F | 52°F | 101°F 2014 | 38°F 1999 | 6% | 0% |
| May 15 | 67°F | 52°F | 103°F 2014 | 35°F 1999 | 6% | 0% |
| May 16 | 67°F | 52°F | 89°F 2008 | 39°F 1999 | 6% | 0% |
| May 17 | 67°F | 52°F | 96°F 2008 | 41°F 2002 | 6% | 0% |
| May 18 | 67°F | 52°F | 89°F 2008 | 39°F 2003 | 6% | 0% |
| May 19 | 67°F | 52°F | 89°F 2003 | 43°F 1998 | 5% | 0% |
| May 20 | 67°F | 52°F | 92°F 2003 | 40°F 1998 | 5% | 0% |
| May 21 | 67°F | 52°F | 96°F 2000 | 39°F 1999 | 5% | 0% |
| May 22 | 67°F | 52°F | 91°F 2000 | 41°F 2007 | 5% | 0% |
| May 23 | 67°F | 52°F | 84°F 2001 | 37°F 2010 | 5% | 0% |
| May 24 | 67°F | 52°F | 94°F 2001 | 42°F 2011 | 4% | 0% |
| May 25 | 67°F | 52°F | 84°F 2020 | 41°F 2013 | 4% | 0% |
| May 26 | 67°F | 52°F | 86°F 2020 | 41°F 1998 | 4% | 0% |
| May 27 | 67°F | 53°F | 86°F 2003 | 39°F 1998 | 4% | 0% |
| May 28 | 67°F | 53°F | 92°F 2003 | 43°F 2008 | 4% | 0% |
| May 29 | 67°F | 53°F | 91°F 2002 | 43°F 2001 | 4% | 0% |
| May 30 | 67°F | 53°F | 88°F 2010 | 40°F 2000 | 3% | 0% |
| May 31 | 67°F | 53°F | 86°F 2004 | 39°F 2000 | 3% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 6:12 AM, sunset 7:50 PM
- May 31
- sunrise 5:50 AM, sunset 8:13 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00045866 (Morro Bay Fire Dept), public domain. Records: NOAA GHCN-Daily, station USW00093206, 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.