Climate by Month - Fallbrook, California Weather Summary

Currently 73°F in Fallbrook, California, USA

Tuesday, January 27, 2026 12:41 PM PST

Fallbrook, California Climate Summary

Click on the month for hour-by-hour statistics for a typical day.

Month	High	Low	Average	Precipitation
January	68.0°F (20.0°C)	48.8°F (9.3°C)	57.0°F (13.9°C)	3.12" (79.2 mm)
February	67.9°F (19.9°C)	48.2°F (9.0°C)	56.5°F (13.6°C)	3.08" (78.2 mm)
March	69.3°F (20.7°C)	49.4°F (9.7°C)	57.8°F (14.3°C)	2.07" (52.7 mm)
April	72.9°F (22.7°C)	51.9°F (11.1°C)	60.7°F (16.0°C)	0.84" (21.2 mm)
May	74.5°F (23.6°C)	55.5°F (13.1°C)	63.1°F (17.3°C)	0.48" (12.2 mm)
June	79.6°F (26.4°C)	58.8°F (14.9°C)	66.8°F (19.3°C)	0.03" (0.8 mm)
July	85.1°F (29.5°C)	62.8°F (17.1°C)	71.4°F (21.9°C)	0.06" (1.4 mm)
August	86.5°F (30.3°C)	63.5°F (17.5°C)	72.4°F (22.4°C)	0.16" (4.0 mm)
September	85.5°F (29.7°C)	62.2°F (16.8°C)	71.3°F (21.8°C)	0.16" (4.0 mm)
October	80.2°F (26.8°C)	58.3°F (14.6°C)	67.0°F (19.4°C)	0.91" (23.1 mm)
November	74.3°F (23.5°C)	53.0°F (11.7°C)	61.7°F (16.5°C)	1.30" (33.0 mm)
December	67.2°F (19.6°C)	48.6°F (9.2°C)	56.5°F (13.6°C)	2.79" (71.0 mm)

The Fallbrook weather pages are a service of WeatherCurrents. Fallbrook, California is located in northern San Diego County, close to I15 and Camp Pendleton, and is home to ranches, avocado and citrus groves, and plant nurseries.