Warm
Average highs sit around 27°C, giving warm days by monthly-average standards.
Weather Guide
Ann Arbor, Michigan, United States Average Monthly Weather
Weather score41Mixed annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 14°C, sunshine averages 6.3h per day, and rainfall totals about 784mm. Sea temperatures average 11°C across the year.
Annual weather
Annual averages
Temp
14°C
Rain
784mm
Annual total
Sun
6.3h
Sea
11°C
Weather score
41
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 81mm, so some wet days are possible.
Bright
Sunshine averages 8.7h per day, so bright days are a strong part of the month.
Swimmable
Sea temperatures average 23°C, which can work for swimming but may feel fresh.
Map
Weather map
Compare Ann Arbor, Michigan, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August27°C average high
August is one of Ann Arbor's warmest months, with daytime heat above the yearly average.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
August81mm average rain
August is one of Ann Arbor's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to March, May, and September to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August8.7 hours average sun
August is brighter than Ann Arbor's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August23°C average sea
August is one of Ann Arbor's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJune to September
Sea temperatures are usually near 18°C in this stretch, so swimming comfort is at its strongest.
Weather score
August72 weather score
August is one of Ann Arbor's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
Hotels in Ann Arbor, Michigan, United States
Marriott
Sheraton Ann Arbor HotelAnn Arbor, Michigan, USA
The Vanguard Ann Arbor, Autograph CollectionAnn Arbor, Michigan, USA
AC Hotel Ann Arbor DowntownAnn Arbor, Michigan, USA
Courtyard Ann ArborAnn Arbor, Michigan, USA
Fairfield Inn Ann ArborAnn Arbor, Michigan, USA
Residence Inn Ann Arbor DowntownAnn Arbor, Michigan, USA