San Leandro Weather in May
Average highs run from 67°F on May 1 to 70°F on May 31, and lows from 51°F to 53°F. Normal precipitation for the month is 0.63 in over about 3 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
- 68°F
- Average low
- 52°F
- Precipitation
- 0.63 in
- Record high
- 98°FMay 29, 1975
- Record low
- 39°FMay 4, 1950
- Chance of a freeze
- 0%
- Days of 90°F or more
- 0.6
- Daylight
- 13 h 46 min to 14 h 35 min
- Cloud cover
- 33%
- Humidity
- 74%
- Dew point
- 48°F
- Wind
- 8.5 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 | 67°F | 51°F | 88°F 2013 | 40°F 1948 | 14% |
| May 2 | 67°F | 51°F | 92°F 2013 | 40°F 1948 | 14% |
| May 3 | 67°F | 51°F | 90°F 2017 | 42°F 1950 | 13% |
| May 4 | 67°F | 51°F | 88°F 1957 | 39°F 1950 | 13% |
| May 5 | 67°F | 51°F | 88°F 1949 | 41°F 1950 | 13% |
| May 6 | 67°F | 51°F | 89°F 2007 | 41°F 1950 | 12% |
| May 7 | 67°F | 51°F | 89°F 2001 | 41°F 1950 | 12% |
| May 8 | 67°F | 51°F | 88°F 2001 | 42°F 1950 | 12% |
| May 9 | 67°F | 51°F | 85°F 2024 | 42°F 1950 | 11% |
| May 10 | 67°F | 52°F | 82°F 1955 | 44°F 1953 | 11% |
| May 11 | 67°F | 52°F | 81°F 1959 | 41°F 2010 | 11% |
| May 12 | 67°F | 52°F | 93°F 1976 | 43°F 2000 | 11% |
| May 13 | 68°F | 52°F | 91°F 2014 | 45°F 1951 | 11% |
| May 14 | 68°F | 52°F | 90°F 2014 | 42°F 1955 | 10% |
| May 15 | 68°F | 52°F | 91°F 1958 | 42°F 1955 | 10% |
| May 16 | 68°F | 52°F | 94°F 1956 | 44°F 1974 | 10% |
| May 17 | 68°F | 52°F | 91°F 2009 | 47°F 1955 | 10% |
| May 18 | 68°F | 52°F | 87°F 1952 | 43°F 1950 | 10% |
| May 19 | 68°F | 52°F | 88°F 1952 | 44°F 1950 | 9% |
| May 20 | 68°F | 52°F | 85°F 2017 | 46°F 1953 | 9% |
| May 21 | 68°F | 52°F | 93°F 2000 | 46°F 1960 | 9% |
| May 22 | 68°F | 52°F | 82°F 1954 | 44°F 1953 | 9% |
| May 23 | 69°F | 53°F | 87°F 1952 | 46°F 2002 | 8% |
| May 24 | 69°F | 53°F | 86°F 2022 | 47°F 1961 | 8% |
| May 25 | 69°F | 53°F | 94°F 1951 | 45°F 1953 | 8% |
| May 26 | 69°F | 53°F | 91°F 2020 | 44°F 1953 | 8% |
| May 27 | 69°F | 53°F | 89°F 1984 | 44°F 1953 | 7% |
| May 28 | 69°F | 53°F | 96°F 1975 | 47°F 1959 | 7% |
| May 29 | 69°F | 53°F | 98°F 1975 | 47°F 2000 | 7% |
| May 30 | 70°F | 53°F | 94°F 2001 | 46°F 2000 | 7% |
| May 31 | 70°F | 53°F | 91°F 2001 | 47°F 1955 | 7% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 6:13 AM, sunset 7:59 PM
- May 31
- sunrise 5:49 AM, sunset 8:24 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00023230 (Oakland Metro Intl AP), public domain. Records: NOAA GHCN-Daily, station USW00023230, 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.