Mild
Average highs are around 20°C, so days are mild rather than hot.
September verdict
Good for holiday weather
Average highs are around 20°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 4mm, which is relatively low for holiday planning.
Monthly averages
Temp
20°C
Rain
4mm
Sun
8.5h
Sea
13°C
Weather score
55
Good
Mild
Average highs are around 20°C, so days are mild rather than hot.
Drier
Rainfall averages 4mm, 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 13°C, so the water can feel cool.
Map
Compare Alexander Bay, South Africa with nearby places by weather score, rain, sun, temperature, and swim conditions.
September20°C average high
September is cooler than the yearly average, which can make sightseeing feel gentler than in hotter months.
Warmest monthsJanuary to May and December
This stretch sets the upper range for average daytime heat.
September4mm average rain
September is close to Alexander Bay's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
September8.5 hours average sun
September is below Alexander Bay's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJanuary and November to December
This stretch has the strongest sunshine in the monthly averages.
September13°C average sea
September is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJanuary to March and December
Sea temperatures are usually near 17°C in this stretch, so swimming comfort is at its strongest.
September55 weather score
September scores below Alexander Bay's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJanuary to March and November to December
These months have the strongest weather score in the monthly averages.