Climate Insights for Alexander Bay

The climate in Alexander Bay is temperate. The average annual temperature is 15°C and approximately 41mm of precipitation falls per year. June is the wettest month, receiving around 7mm of rainfall. Alexander Bay is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: January, February, March. The coldest months are August, September, July, when temperatures can drop to 12°C.

Alexander Bay has relatively stable temperatures year-round, staying within a 6°C range. January is the warmest month, though highs remain moderate at 18°C with a mean of 17°C. August is the coolest month, with minimum temperatures around 12°C and an average of 13°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows.

Alexander Bay is a quite dry location, receiving approximately 41mm of precipitation annually, which averages out to around 3mm per month. The wettest month is June, averaging 7mm of rainfall. July and January also tend to see above-average precipitation. The driest month is April, with just 1mm. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Alexander Bay is moderately windy, with an average annual wind speed of 27km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 29km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in May, with average winds dropping to 24km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h between the calmest and windiest months.

It is currently autumn in Alexander Bay, which began on March 20, 2026. Alexander Bay is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in January at around 18°C, while the coldest stretch bottoms out in August near 12°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Alexander Bay is during January, February, March, April and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 3mm per month. By contrast, August can be quite cold with temperatures dropping to 12°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Alexander Bay based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.