Mild
Average highs are around 25°C, so days are mild rather than hot.
July verdict
Good for holiday weather
Average highs are around 25°C, so days are mild rather than hot. Sunshine averages 8.5h per day, so bright days are a strong part of the month. Rainfall averages 68mm, which is relatively low for holiday planning.
Monthly averages
Temp
25°C
Rain
68mm
Sun
8.5h
Sea
20°C
Weather score
68
Good
Mild
Average highs are around 25°C, so days are mild rather than hot.
Drier
Rainfall averages 68mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.5h per day, so bright days are a strong part of the month.
Cool sea
Sea temperatures average 20°C, so the water can feel cool.
Map
Compare Hyannis, Massachusetts, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
July25°C average high
July is one of Hyannis' warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
July68mm average rain
July is one of Hyannis' driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsFebruary, May to July, and September to October
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
July8.5 hours average sun
July is one of Hyannis' sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
July20°C average sea
July is one of Hyannis' warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 20°C in this stretch, so swimming comfort is at its strongest.
July68 weather score
July is one of Hyannis' best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.