Sylmar Weather in September

September in Sylmar brings very high temperatures, with daytime highs of 32°C (90°F) and nights around 17°C (63°F). Only 5.4 mm (0.2 in) of rainfall is typical, making it a largely dry month.

Rainfall in Sylmar in September

Rain is expected on roughly a single day, totalling around 5.4 mm (0.2 in) for the month. If rain does fall, it tends to arrive as a fairly heavy shower rather than light drizzle.

Temperature in Sylmar in September

Sylmar in September has excellent weather. Days reach 32°C (90°F) and nights cool to 17°C (63°F). Mornings and evenings are often more comfortable than the peak afternoon hours. Nights cool down to 17°C (63°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Sylmar in September

With approximately 278 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

Should you favor a climate that's both dry and comfortably warm, March, April, May, June, October and November typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.