| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 25.6° | — | 47.2mm | 11 | 78 |
| February | 25.8° | — | 52mm | 9.3 | 81 |
| March | 25.3° | 13.9° | 81.1mm | 12.8 | 74 |
| April | 23.8° | 10.9° | 58mm | 10.5 | 79 |
| May | 22.5° | 10.8° | 55.7mm | 9 | 82 |
| June | 20.7° | 8.8° | 34.7mm | 7.2 | 86 |
| July | 19.8° | 6.8° | 47.5mm | 10.3 | 79 |
| August | 20.2° | 8.7° | 48.2mm | 10 | 80 |
| September | 20.5° | — | 43.8mm | 7.4 | 85 |
| October | 21.5° | — | 87.4mm | 9.4 | 81 |
| November | 22.8° | — | 81.7mm | 10.9 | 78 |
| December | 24.4° | — | 79.1mm | 11.2 | 78 |
January in Mossel Bay averages a daily high of 25.6°C. Expect roughly 11 wet days totalling 47.2mm. Comfortable conditions for being outdoors all day.
February in Mossel Bay averages a daily high of 25.8°C. Expect roughly 9.3 wet days totalling 52mm. Comfortable conditions for being outdoors all day.
March in Mossel Bay averages a daily high of 25.3°C with nights around 13.9°C. Expect roughly 12.8 wet days totalling 81.1mm. Generally workable, with some weather to plan around.
April in Mossel Bay averages a daily high of 23.8°C with nights around 10.9°C. Expect roughly 10.5 wet days totalling 58mm. Comfortable conditions for being outdoors all day.
May in Mossel Bay averages a daily high of 22.5°C with nights around 10.8°C. Expect roughly 9 wet days totalling 55.7mm. Comfortable conditions for being outdoors all day.
June in Mossel Bay averages a daily high of 20.7°C with nights around 8.8°C. Expect roughly 7.2 wet days totalling 34.7mm. Comfortable conditions for being outdoors all day.
July in Mossel Bay averages a daily high of 19.8°C with nights around 6.8°C. Expect roughly 10.3 wet days totalling 47.5mm. Comfortable conditions for being outdoors all day.
August in Mossel Bay averages a daily high of 20.2°C with nights around 8.7°C. Expect roughly 10 wet days totalling 48.2mm. Comfortable conditions for being outdoors all day.
September in Mossel Bay averages a daily high of 20.5°C. Expect roughly 7.4 wet days totalling 43.8mm. Comfortable conditions for being outdoors all day.
October in Mossel Bay averages a daily high of 21.5°C. Expect roughly 9.4 wet days totalling 87.4mm. Comfortable conditions for being outdoors all day.
November in Mossel Bay averages a daily high of 22.8°C. Expect roughly 10.9 wet days totalling 81.7mm. Comfortable conditions for being outdoors all day.
December in Mossel Bay averages a daily high of 24.4°C. Expect roughly 11.2 wet days totalling 79.1mm. Comfortable conditions for being outdoors all day.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Mossel Bay peaks at 86.
Based on 30 years of records, April–February scores highest for comfort in Mossel Bay, balancing daytime temperature against rainfall.
February is the warmest, averaging a daily high of 25.8°C.
October is the wettest, averaging 87.4mm of rain across roughly 9.4 wet days.
July is the coolest month, with average daily highs around 19.8°C.