The temperatures in Darien in August are comfortable with low of 19°C and and high up to 27°C.
You can expect rain for roughly half of the month of August in Darien. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Darien in August 2025.
If you’re planning to visit Darien in the near future, we highly recommend that you review the 14 day weather forecast for Darien before you arrive.
Temperatures
27° / 19°
Rainy Days
9
Snowy Days
0
Dry Days
22
Rainfall
102
mm
Sun Hours
7.5
Hrs
