| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 7.7° | 2.3° | 165.6mm | 18.7 | 31 |
| February | 9.1° | 2.5° | 91.8mm | 13.9 | 37 |
| March | 11.2° | 4.1° | 113.7mm | 18.2 | 42 |
| April | 14° | 6.1° | 77.8mm | 13 | 55 |
| May | 17.3° | 9.2° | 67.3mm | 11.1 | 69 |
| June | 19.9° | 11.9° | 42.8mm | 9.6 | 80 |
| July | 22.2° | 13.7° | 26.5mm | 5.6 | 89 |
| August | 22.3° | 13.7° | 27.8mm | 5.6 | 89 |
| September | 19.6° | 11.2° | 63.7mm | 8.8 | 81 |
| October | 14.5° | 7.6° | 128.9mm | 14.8 | 53 |
| November | 10.3° | 4.4° | 180.1mm | 17.6 | 39 |
| December | 7.2° | 1.9° | 152.6mm | 18.6 | 29 |
January in South Surrey averages a daily high of 7.7°C with nights around 2.3°C. Expect roughly 18.7 wet days totalling 165.6mm. A hard month to visit for comfort alone.
February in South Surrey averages a daily high of 9.1°C with nights around 2.5°C. Expect roughly 13.9 wet days totalling 91.8mm. Demanding conditions — pack for it and plan indoor options.
March in South Surrey averages a daily high of 11.2°C with nights around 4.1°C. Expect roughly 18.2 wet days totalling 113.7mm. Demanding conditions — pack for it and plan indoor options.
April in South Surrey averages a daily high of 14°C with nights around 6.1°C. Expect roughly 13 wet days totalling 77.8mm. Generally workable, with some weather to plan around.
May in South Surrey averages a daily high of 17.3°C with nights around 9.2°C. Expect roughly 11.1 wet days totalling 67.3mm. Generally workable, with some weather to plan around.
June in South Surrey averages a daily high of 19.9°C with nights around 11.9°C. Expect roughly 9.6 wet days totalling 42.8mm. Comfortable conditions for being outdoors all day.
July in South Surrey averages a daily high of 22.2°C with nights around 13.7°C. Expect roughly 5.6 wet days totalling 26.5mm. Comfortable conditions for being outdoors all day.
August in South Surrey averages a daily high of 22.3°C with nights around 13.7°C. Expect roughly 5.6 wet days totalling 27.8mm. Comfortable conditions for being outdoors all day.
September in South Surrey averages a daily high of 19.6°C with nights around 11.2°C. Expect roughly 8.8 wet days totalling 63.7mm. Comfortable conditions for being outdoors all day.
October in South Surrey averages a daily high of 14.5°C with nights around 7.6°C. Expect roughly 14.8 wet days totalling 128.9mm. Demanding conditions — pack for it and plan indoor options.
November in South Surrey averages a daily high of 10.3°C with nights around 4.4°C. Expect roughly 17.6 wet days totalling 180.1mm. Demanding conditions — pack for it and plan indoor options.
December in South Surrey averages a daily high of 7.2°C with nights around 1.9°C. Expect roughly 18.6 wet days totalling 152.6mm. A hard month to visit for comfort alone.
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. South Surrey peaks at 89.
Based on 30 years of records, July–September scores highest for comfort in South Surrey, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 22.3°C.
November is the wettest, averaging 180.1mm of rain across roughly 17.6 wet days.
December is the coolest month, with average daily highs around 7.2°C.