| Port St. Johns normally receives about 990mm of rain per year, with most rainfall occuring mainly during summer. The chart below (lower left) shows the average rainfall values for Port St. Johns per month. It receives the lowest rainfall (17mm) in June and the highest (136mm) in March. The monthly distribution of average daily maximum temperatures (centre chart below) shows that the average midday temperatures for Port St. Johns range from 21°C in July to 25.8°C in February. The region is the coldest during July when the mercury drops to 10°C on average during the night. Consult the chart below (lower right) for an indication of the monthly variation of average minimum daily temperatures. |
| Move mouse over chart bars for monthly values |
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Average rainfall (mm)
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Average midday temperature (°C)
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Average night-time temperature (°C)
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