Oceanside weather in May: Oceanside, California: normal highs, lows, rain and records for May
Oceanside in May has a normal high of 70°F and a normal low of 54°F, a daily mean of 62°F, holding near 70°F all month. Measurable precipitation falls on 4 days in a normal May, 0.30 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 21°C and low of 12°C, 8 mm of precipitation in May.
- NOAA stationOceanside Municipal Airport
- Station IDUSW00053121
- Location33.22°N 117.35°W
- Elevation28 ft (9 m)
- From the center3 miles
- Population170,941
- Jan 67° 41°
- Feb 66° 42°
- Mar 66° 46°
- Apr 69° 48°
- May 70° 54°
- Jun 73° 58°
- Jul 77° 62°
- Aug 78° 62°
- Sep 78° 59°
- Oct 75° 53°
- Nov 71° 44°
- Dec 66° 40°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Oceanside in May?
The normal high is 70°F and the normal low 54°F, for a daily mean of 62.1°F. May is 3.8°F warmer than April and 3.4°F cooler than June. May is the 6th warmest month of the year in Oceanside and the 8th wettest. Across the month the normal high rises 1°F, from 70°F on May 1 to 71°F on May 31. From one year to the next May's mean temperature typically moves about 1.7°F either way (NOAA's standard deviation), so roughly two Mays in three average between 60°F and 64°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 13%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 70°F | 51°F | 13% | 4% |
| May 8 | 70°F | 53°F | 13% | 3% |
| May 15 | 70°F | 55°F | 12% | 3% |
| May 22 | 70°F | 56°F | 11% | 2% |
| May 31 | 71°F | 57°F | 9% | 1% |
Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| May 1 | 70°F | 51°F | 13% | 4% | 13 h 30 min |
| May 2 | 70°F | 51°F | 13% | 4% | 13 h 30 min |
| May 3 | 70°F | 51°F | 13% | 4% | 13 h 30 min |
| May 4 | 70°F | 52°F | 13% | 4% | 13 h 30 min |
| May 5 | 70°F | 52°F | 13% | 3% | 13 h 40 min |
| May 6 | 70°F | 52°F | 13% | 3% | 13 h 40 min |
| May 7 | 70°F | 52°F | 13% | 3% | 13 h 40 min |
| May 8 | 70°F | 53°F | 13% | 3% | 13 h 40 min |
| May 9 | 70°F | 53°F | 12% | 3% | 13 h 40 min |
| May 10 | 70°F | 53°F | 12% | 3% | 13 h 40 min |
| May 11 | 70°F | 54°F | 12% | 3% | 13 h 40 min |
| May 12 | 70°F | 54°F | 12% | 3% | 13 h 50 min |
| May 13 | 70°F | 54°F | 12% | 3% | 13 h 50 min |
| May 14 | 70°F | 54°F | 12% | 3% | 13 h 50 min |
| May 15 | 70°F | 55°F | 12% | 3% | 13 h 50 min |
| May 16 | 70°F | 55°F | 12% | 3% | 13 h 50 min |
| May 17 | 70°F | 55°F | 11% | 3% | 13 h 50 min |
| May 18 | 70°F | 55°F | 11% | 2% | 14 h |
| May 19 | 70°F | 55°F | 11% | 2% | 14 h |
| May 20 | 70°F | 56°F | 11% | 2% | 14 h |
| May 21 | 70°F | 56°F | 11% | 2% | 14 h |
| May 22 | 70°F | 56°F | 11% | 2% | 14 h |
| May 23 | 70°F | 56°F | 11% | 2% | 14 h |
| May 24 | 70°F | 56°F | 11% | 2% | 14 h |
| May 25 | 70°F | 56°F | 10% | 2% | 14 h |
| May 26 | 70°F | 57°F | 10% | 2% | 14 h 10 min |
| May 27 | 70°F | 57°F | 10% | 2% | 14 h 10 min |
| May 28 | 70°F | 57°F | 10% | 2% | 14 h 10 min |
| May 29 | 70°F | 57°F | 10% | 1% | 14 h 10 min |
| May 30 | 70°F | 57°F | 9% | 1% | 14 h 10 min |
| May 31 | 71°F | 57°F | 9% | 1% | 14 h 10 min |
- Normal high
- 70°FMay average
- Normal low
- 54°FMay average
- Precipitation
- 0.30 inmonth total
- Days with precipitation
- 40.01 inch or more
- Daylight
- 13 h 30 min to 14 h 10 minMay 1 to May 31
- Days at 70°F or more
- 17
- Days at 80°F or more
- 1
- Sunshine
- 83%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00053121; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Oceanside in May?
On a given May day the chance of 0.01 inch or more is 11% on average, highest around May 1 (13%). In all, 0.30 in falls on 4 days of a normal May.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00053121.
What are the records for May in Oceanside?
The warmest May temperature on this station's record (since 1999) is 89°F, on May 8, 2007; the coldest is 38°F, on May 1, 2011. The wettest May brought 1.46 in (2015).
The May mean against the 1991-2020 normal of 62.1°F: 2021 62.7°F (+0.6), 2022 62.5°F (+0.4), 2023 61.7°F (−0.4), 2024 63.1°F (+1.0), 2026 63.6°F (+1.5). 4 of 5 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 62.7°F | +0.6°F | 0.15 in |
| 2022 | 62.5°F | +0.4°F | 0.00 in |
| 2023 | 61.7°F | −0.4°F | 0.32 in |
| 2024 | 63.1°F | +1.0°F | 0.13 in |
| 2026 | 63.6°F | +1.5°F | 0.10 in |
Source: records: ACIS, station USW00053121; recent months: ACIS, station USW00053121. Records and recent months use complete months only.
How does May in Oceanside compare across California?
Across the 219 places PlainClimate covers in California, May normal highs run from 58°F in Tahoma to 96°F in Needles; Oceanside's is 70°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.