Hartford Weather in August
During August, Hartford experiences high daytime temperatures of 28°C (82°F) and cooler nights around 17°C (63°F). Expect quite a bit of rainfall. Around 120 mm (4.7 in) is typical.
Rainfall in Hartford in August
Climate statistics over the past 30 years suggest around 11 days of rain, with 120 mm (4.7 in) average for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Hartford in August
If you're visiting Hartford in August, expect highs of 28°C (82°F) and overnight lows around 17°C (63°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. 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 Hartford in August
The days are predominantly sunny, with an estimated total of around 269 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.If your ideal day consists of dry skies and pleasant temperatures, May and September typically offer the best circumstances for Hartford.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Hartford's climate page.
Hartford Temperature in August
Min Temperature
17°C (63°F)
Max Temperature
28°C (82°F)
Chance of Rain
37%
Precipitation
120 mm (4.7 in)
Rainy days
11 days
Humidity
70%
Sunshine
269 hours
Percentage Sunshine
63%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Hartford typically stay consistent throughout August, with daily highs averaging around 28°C (82°F). Nights are pleasant, with lows typically ranging from 15°C (59°F) to 20°C (68°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Hartford in August
Browse day-by-day weather records for Hartford spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hartford historical weather extremes in August
The extremes listed below come from historical weather data collected in Hartford from 1976 through 2025.
- The warmest day in August was on August 9, 2001, with a maximum of 39°C (102°F).
- The coldest August day was on August 25, 1978, with a maximum of 15°C (59°F).
- Nighttime temperatures dropped to 4°C (39°F) on August 30, 1986, marking the coldest August night on record.
Best Places in the United States of America in August
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in August →
perfect weather
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unpleasant
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What to Wear in Hartford in August
Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Hartford in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Hartford's climate page.
Temperature Rainfall Sunshine Humidity
See the full Hartford climate overview or explore weather in the United States of America.
