Mild
Average highs are around 24°C, so days are mild rather than hot.
December verdict
Good for holiday weather
Average highs are around 24°C, so days are mild rather than hot. Sunshine averages 6.4h per day, enough for a balanced month. Rainfall averages 17mm, which is relatively low for holiday planning.
Monthly averages
Temp
24°C
Rain
17mm
Sun
6.4h
Sea
20°C
Weather score
65
Good
Mild
Average highs are around 24°C, so days are mild rather than hot.
Drier
Rainfall averages 17mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.4h per day, enough for a balanced month.
Cool sea
Sea temperatures average 20°C, so the water can feel cool.
Map
Compare Heroica Guaymas, Sonora, Mexico with nearby places by weather score, rain, sun, temperature, and swim conditions.
December24°C average high
December is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
December17mm average rain
December sits on the drier side of Heroica Guaymas' year, which helps with sightseeing and transfers.
Driest monthsJanuary to June and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
December6.4 hours average sun
December is one of Heroica Guaymas' cloudier months, so sunshine-led plans are less reliable.
Brightest monthsMay to June
This stretch has the strongest sunshine in the monthly averages.
December20°C average sea
December is below Heroica Guaymas' yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJuly to October
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
December65 weather score
December scores below Heroica Guaymas' yearly average, so the weather trade-offs are more noticeable.
Best weather monthsApril to June and October to November
These months have the strongest weather score in the monthly averages.