San Diego Botanic Garden Weather Forecast
- 67
- 78
Increasing Clouds
- 68
- 78
Rain Showers Likely
- 68
- 75
Rain Showers Likely
- 66
- 73
Slight Chance Thunderstorms
- 66
- 74
Mostly Cloudy
- 67
- 77
Mostly Cloudy
- 67
- 77
Partly Sunny
Today 16 Sep San Diego County Coastal Areas
Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 77 to 82 near the coast to 85 to 90 inland. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon.
Tonight 16 Sep San Diego County Coastal Areas
Partly cloudy this evening. Becoming mostly cloudy. Lows 65 to 69. Areas of Winds west 10 Mph this evening becoming light.
San Diego Botanic Garden Temperature Statistics
September Temperature
Carlsbad, McClellan-Palomar Airport (5 miles)
Lowest 6 September, 2025
64 °FAverage September
69.8 °FHighest 7 September, 2025
79 °F
Climate (2020–Present)
Carlsbad, McClellan-Palomar Airport (5 miles)
Average Low 2020–2025
56.6 °FAverage 2020–2025
62.5 °FAverage High 2020–2025
68.9 °F