Oceanside Weather in May
Average highs run from 64°F on May 1 to 65°F on May 31, and lows from 56°F to 60°F. Normal precipitation for the month is 0.28 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
- 65°F
- Average low
- 58°F
- Precipitation
- 0.28 in
- Record high
- 89°FMay 2, 2011
- Record low
- 38°FMay 1, 2011
- Chance of a freeze
- 0%
- Daylight
- 13 h 30 min to 14 h 11 min
- Cloud cover
- 43%
- Humidity
- 78%
- Dew point
- 55°F
- Wind
- 7.2 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 |
|---|---|---|---|---|---|
| May 1 | 64°F | 56°F | 83°F 2011 | 38°F 2011 | 7% |
| May 2 | 64°F | 56°F | 89°F 2011 | 45°F 2002 | 7% |
| May 3 | 64°F | 56°F | 88°F 2011 | 43°F 2002 | 7% |
| May 4 | 64°F | 56°F | 82°F 2004 | 44°F 2011 | 7% |
| May 5 | 64°F | 56°F | 79°F 2018 | 46°F 2002 | 7% |
| May 6 | 65°F | 57°F | 86°F 2007 | 44°F 2024 | 7% |
| May 7 | 65°F | 57°F | 88°F 2007 | 45°F 2024 | 7% |
| May 8 | 65°F | 57°F | 89°F 2007 | 44°F 2017 | 6% |
| May 9 | 65°F | 57°F | 78°F 2007 | 47°F 2003 | 6% |
| May 10 | 65°F | 57°F | 72°F 2020 | 43°F 2022 | 6% |
| May 11 | 65°F | 57°F | 76°F 2013 | 41°F 2022 | 6% |
| May 12 | 65°F | 58°F | 85°F 2002 | 40°F 2010 | 6% |
| May 13 | 65°F | 58°F | 87°F 2013 | 42°F 2022 | 6% |
| May 14 | 65°F | 58°F | 84°F 2022 | 46°F 2008 | 6% |
| May 15 | 65°F | 58°F | 80°F 2004 | 47°F 2000 | 6% |
| May 16 | 65°F | 58°F | 83°F 2008 | 44°F 2011 | 6% |
| May 17 | 65°F | 58°F | 85°F 2008 | 46°F 1999 | 5% |
| May 18 | 65°F | 58°F | 87°F 2008 | 45°F 2019 | 5% |
| May 19 | 65°F | 58°F | 82°F 2017 | 47°F 2026 | 5% |
| May 20 | 65°F | 59°F | 85°F 2017 | 48°F 2026 | 5% |
| May 21 | 65°F | 59°F | 79°F 2005 | 45°F 2002 | 5% |
| May 22 | 65°F | 59°F | 73°F 2001 | 42°F 2002 | 5% |
| May 23 | 65°F | 59°F | 73°F 2006 | 44°F 2021 | 5% |
| May 24 | 65°F | 59°F | 75°F 2006 | 45°F 2019 | 5% |
| May 25 | 65°F | 59°F | 77°F 2021 | 43°F 2010 | 5% |
| May 26 | 65°F | 59°F | 75°F 2020 | 50°F 2010 | 4% |
| May 27 | 65°F | 59°F | 76°F 2020 | 47°F 2008 | 4% |
| May 28 | 65°F | 59°F | 77°F 2000 | 47°F 2008 | 4% |
| May 29 | 65°F | 59°F | 75°F 2013 | 44°F 2010 | 4% |
| May 30 | 65°F | 60°F | 79°F 2025 | 45°F 2011 | 4% |
| May 31 | 65°F | 60°F | 77°F 2006 | 46°F 2011 | 4% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 6:02 AM, sunset 7:32 PM
- May 31
- sunrise 5:42 AM, sunset 7:53 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00046377 (Oceanside Marina), public domain. Records: NOAA GHCN-Daily, station USW00053121, 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.