Temperature in Connecticut in August

Daytime highs, nighttime lows and the warmest cities in Connecticut, the United States of America this August.

Connecticut, the United States of America, a region in the United States of America, experiences high average maximum daytime temperatures in August, ranging from 26°C (79°F) in Cornwall Bridge to 29°C (84°F) in Windsor Locks. Nighttime temperatures generally drop to 17°C (63°F) in Windsor Locks and 15°C (59°F) in Cornwall Bridge. During August, summer is in full swing.

What is the temperature of the different cities in Connecticut, the United States of America in August?

Curious about the August temperatures in the prime spots of Connecticut? Navigate the map below and tap on a destination dot for more detailed stats.

Select a Month

Check the conditions for any month of the year.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

For a detailed overview over the year and the best time to visit Connecticut, check out our Connecticut's climate page.

See also: Connecticut weather by month.

Best Places to Visit in Connecticut in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Connecticut.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in August: blue is cold, red is hot.

See all August weather averages, cities and regions in Connecticut

Connecticut temperatures in August: frequently asked questions

How hot does it get in Connecticut, the United States of America in August?

Mystic averages a daytime high of 26°C (79°F) in August, which is high for Connecticut, the United States of America.

How cold does it get at night in Connecticut, the United States of America in August?

After dark, Mystic cools to about 18°C (64°F) on an average August night.

What is the warmest city in August in Connecticut, the United States of America?

Based on our systematic data collection, Windsor Locks has been identified as the city with the highest average temperatures. The daytime temperature usually hovers around 29°C (84°F), while at night it goes down to an approximate temperature of 17°C (63°F).

What is the coldest city in August in Connecticut, the United States of America?

For the month of August, Cornwall Bridge is the most temperate city in Connecticut, the United States of America based on our records. Highs average 26°C (79°F) and nighttime temperatures dip to around 15°C (59°F).

How much sun does Connecticut, the United States of America get in August?

Mystic enjoys close to 260 hours of sunlight. This not only brightens the days but also uplifts the atmosphere during the month.

Interested in more climate information?

We have much more information about the climate in Connecticut.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.

Yosemite National Park is definitely worth a visit

Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States

Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes

A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States

Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.
Must visit in the United States of America →