Currently
78°F
in Simi Valley, California, USA
81°F / 75°F
16 mph SE
0.00"
Friday, October 16, 2026 9:04 AM PDT
Simi Valley
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Simi Valley, California Climate Summary
Click on the month for hour-by-hour statistics for a typical day.
| Month | High | Low | Average | Precipitation |
| January | 66.6°F (19.2°C) | 48.2°F (9.0°C) | 57.0°F (13.9°C) | 2.25" (57.1 mm) |
| February | 68.1°F (20.1°C) | 46.9°F (8.3°C) | 56.7°F (13.7°C) | 2.67" (67.9 mm) |
| March | 70.0°F (21.1°C) | 48.0°F (8.9°C) | 58.0°F (14.4°C) | 2.70" (68.6 mm) |
| April | 74.0°F (23.3°C) | 50.6°F (10.3°C) | 61.4°F (16.3°C) | 0.58" (14.7 mm) |
| May | 75.1°F (23.9°C) | 52.9°F (11.6°C) | 63.3°F (17.4°C) | 0.27" (6.8 mm) |
| June | 81.1°F (27.3°C) | 57.3°F (14.1°C) | 68.6°F (20.3°C) | 0.02" (0.4 mm) |
| July | 86.7°F (30.4°C) | 61.2°F (16.2°C) | 73.4°F (23.0°C) | 0.08" (1.9 mm) |
| August | 88.8°F (31.5°C) | 62.2°F (16.8°C) | 74.5°F (23.6°C) | 0.25" (6.4 mm) |
| September | 86.5°F (30.3°C) | 60.7°F (15.9°C) | 72.1°F (22.3°C) | 0.16" (4.1 mm) |
| October | 81.1°F (27.3°C) | 56.2°F (13.4°C) | 67.3°F (19.6°C) | 0.35" (8.9 mm) |
| November | 72.6°F (22.6°C) | 51.1°F (10.6°C) | 61.0°F (16.1°C) | 1.05" (26.6 mm) |
| December | 65.8°F (18.8°C) | 47.0°F (8.4°C) | 55.9°F (13.3°C) | 2.98" (75.6 mm) |