Connecticut weather in August 2025

Q: How hot is it in Connecticut in August?

Daytime temperatures usually reach 28°C in Hartford, Connecticut in August with moderate heat and humidity, falling to 16°C at night.

Q: How sunny is it in Connecticut in August?

There are normally 9 hours of bright sunshine each day in Hartford, Connecticut in August - that's 62% of daylight hours.

Q: Does it rain in Connecticut in August?

There are usually 10 days with some rain in Hartford, Connecticut in August and the average monthly rainfall is 93mm.

Q: What is the chance of a hurricane in Connecticut in August?

On average less than 1 day in August in Hartford, Connecticut is likely to be affected by the passage of one or more tropical storms.

Expect daytime maximum temperatures of 82°F in Connecticut, USA in August based on long-term weather averages. There are 9 hours of sunshine per day on average with 10 days with some rainfall and typically 3.7 inches of rainfall in the month.

82
82°F max day temperature
9
9 hours of sunshine per day
10
10 days with some rainfall
61
61°F min night temperature
14
14 hours of daylight per day
M
Moderate heat & humidity
3.7
3.7 inches of monthly rainfall
8
8 (Very High) UV index

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The August weather guide for Connecticut (Hartford) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Connecticut destinations

Below are average maximum temperatures at popular countries, regions and places in Connecticut in August. Select a holiday destination to see more weather parameters.

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Metric (°C) | Imperial (°F)

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How hot is it in Connecticut in August?

Daytime temperatures usually reach 82°F in Hartford, Connecticut in August with moderate heat and humidity, falling to 61°F at night.

How sunny is it in Connecticut in August?

There are normally 9 hours of bright sunshine each day in Hartford, Connecticut in August - that's 62% of daylight hours.

Does it rain in Connecticut in August?

There are usually 10 days with some rain in Hartford, Connecticut in August and the average monthly rainfall is 3.7 inches.

What is the chance of a hurricane in Connecticut in August?

On average less than 1 day in August in Hartford, Connecticut is likely to be affected by the passage of one or more tropical storms.

Connecticut August sunrise & sunset times

Browse the sunrise and sunset times for Connecticut in August 2025. Select a month to view Connecticut sunrise and sunset times for the next 12 months. The Connecticut sunrise and sunset times shown below are for Hartford.

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

Date	Sunrise times	Sunset times
Friday, 1st August 2025	04:45	19:08
Saturday, 16th August 2025	05:01	18:49
Sunday, 31st August 2025	05:16	18:25

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Connecticut - quick facts
Flight time^✝	10.5 hours
Time difference	UK -5 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Tourist info	Connecticut Office of Tourism