Simi Valley weather in August 2025

The weather in Simi Valley in August is hot. The average temperatures are between 20°C and 26°C.

As it is almost never rain during August in Simi Valley the weather is perfect for hanging out outside and exploring all that Simi Valley has to offer.

Our weather forecast can give you a great sense of what weather to expect in Simi Valley in August 2025.

If you’re planning to visit Simi Valley in the near future, we highly recommend that you review the 14 day weather forecast for Simi Valley before you arrive.

Temperatures

26° / 20°

Rainy Days

Snowy Days

Dry Days

Rainfall

Sun Hours

11.8

Hrs

Sun	Mon	Tue	Wed	Thu	Fri	Sat
					1 34° /20°	2 34° /20°
3 33° /20°	4 33° /20°	5 35° /20°	6 35° /21°	7 35° /21°	8 33° /19°	9 33° /20°
10 30° /19°	11 32° /19°	12 33° /20°	13 33° /20°	14 33° /20°	15 35° /19°	16 35° /20°
17 35° /20°	18 34° /19°	19 33° /19°	20 31° /19°	21 31° /18°	22 30° /17°	23 31° /17°
24 31° /17°	25 32° /17°	26 33° /19°	27 33° /17°	28 32° /16°	29 32° /17°	30 34° /17°
31 35° /20°

Explore the weather in Simi Valley in other months

Simi Valley annual weather

Month	Temperatures	Rainy Days	Dry Days	Rainfall	Weather	More details
January	16° / 8°	3	28	81 mm	Good	Simi Valley in January
February	16° / 8°	3	26	69 mm	Good	Simi Valley in February
March	17° / 9°	2	29	52 mm	Good	Simi Valley in March
April	19° / 11°	1	29	24 mm	Good	Simi Valley in April
May	21° / 14°	1	30	14 mm	Good	Simi Valley in May
June	24° / 17°	0	30	4 mm	Perfect	Simi Valley in June
July	26° / 19°	0	31	12 mm	Perfect	Simi Valley in July
August	26° / 20°	0	31	5 mm	Perfect	Simi Valley in August
September	26° / 18°	0	30	9 mm	Perfect	Simi Valley in September
October	23° / 14°	1	30	16 mm	Perfect	Simi Valley in October
November	19° / 11°	1	29	23 mm	Good	Simi Valley in November
December	15° / 8°	3	28	68 mm	Good	Simi Valley in December

Temperatures in Simi Valley in August

Rain in Simi Valley in August

Weather in Simi Valley in August - FAQ

What is the average temperature in Simi Valley in August?

The average temperature in Simi Valley in August is 20/26° C.

What is the chance of rain in Simi Valley in August?

On average, there are 0 rainy days in Simi Valley during August.

Weather wise, is August a good time to visit Simi Valley?

The weather in Simi Valley in August is perfect.

Can it snow in Simi Valley in August?

On average, there are 0 snowy days in Simi Valley in August.

More about the weather in Simi Valley