Rochester weather in August
Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Good
Best time to visit: May – September
What is the weather like in Rochester in August?
In August, Rochester is warm: daytime highs average 26 °C, and nights cool down to about 17 °C. The sun shines for around 8 hours a day. Rain is frequent, with about 12 rainy days and 79 mm in total. All in all, August is a good month for a holiday in Rochester.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 84 | 78 | 77 |
| Day | 27° | 26° | 23° |
| Night | 18° | 17° | 14° |
| Sun | 9 h | 8 h | 6 h |
| Rain days | 11 | 12 | 10 |
More details for August
- Daylight
- 14 h 0 min06:15 – 20:16
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 8 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 50 %on averageAll months
- Hot days
- 4 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC−4America/New_York
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %75 %
- Few rainy daysweight 30 %44 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Rain jacket or umbrella
Rochester in August: quick answers
Is Rochester hot in August?
Warm rather than hot: in August, daytime highs in Rochester average 26 °C and nights cool to about 17 °C. On about 4 days the thermometer climbs to 30 °C or more.
Does it rain much in Rochester in August?
Rain is frequent, with about 12 rainy days and 79 mm in total.
Rochester month by month
The whole year in RochesterAll destinations: USAWhere to go in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences