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 7.2h per day, enough for a balanced month. Rainfall averages 104mm, so some wet days are possible.
Monthly averages
Temp
24°C
Rain
104mm
Sun
7.2h
Sea
24°C
Weather score
65
Good
Mild
Average highs are around 24°C, so days are mild rather than hot.
Showers
Rainfall averages 104mm, so some wet days are possible.
Some sun
Sunshine averages 7.2h per day, enough for a balanced month.
Swimmable
Sea temperatures average 24°C, which can work for swimming but may feel fresh.
Map
Compare Port St Johns, South Africa with nearby places by weather score, rain, sun, temperature, and swim conditions.
December24°C average high
December sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJanuary to April and December
This stretch sets the upper range for average daytime heat.
December104mm average rain
December is wetter than Port St Johns' yearly average, so flexible plans matter more.
Driest monthsMay to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
December7.2 hours average sun
December is close to Port St Johns' usual sunshine level, with limited seasonal swing across the year.
Brightest monthsAll year
Sunshine stays consistently strong through the year.
December24°C average sea
December is close to Port St Johns' yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJanuary to April
Sea temperatures are usually near 25°C in this stretch, so swimming comfort is at its strongest.
December65 weather score
December scores above Port St Johns' yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJanuary to June and December
These months have the strongest weather score in the monthly averages.