San Ysidro Weather Forecast
- 60
- 69
Patchy Fog
- 61
- 75
Partly Sunny
- 63
- 75
Mostly Cloudy
- 62
- 73
Slight Chance Rain Showers
- 59
- 68
Mostly Cloudy
- 57
- 66
Mostly Cloudy
Today 29 May San Diego County Coastal Areas
Mostly cloudy this morning. Becoming partly cloudy. Patchy fog this morning. Highs around 70 near the coast to 73 inland. Areas of Winds west to 10 Mph.
Tonight 29 May San Diego County Coastal Areas
Partly cloudy. Patchy fog overnight. Lows 56 to 60. Light Winds.
San Ysidro Temperature Statistics
May Temperature
San Diego, Brown Field Municipal Airport (3.1 miles)
Lowest 14 May, 2025
48.7 °FAverage May
64.5 °FHighest 10 May, 2025
92.6 °F
Climate (2020–Present)
San Diego, Brown Field Municipal Airport (3.1 miles)
Average Low 2020–2025
54.1 °FAverage 2020–2025
63.4 °FAverage High 2020–2025
73.9 °F