| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 8.7° | 1.7° | 66.9mm | 15 | 33 |
| February | 9.5° | 2.1° | 54.5mm | 13.2 | 40 |
| March | 11.6° | 3° | 52mm | 13.2 | 47 |
| April | 14.2° | 4.4° | 49.2mm | 11.7 | 58 |
| May | 17.4° | 7.5° | 54.6mm | 12 | 68 |
| June | 20.2° | 10.4° | 51.5mm | 10.5 | 79 |
| July | 22° | 12.2° | 52.7mm | 11.8 | 76 |
| August | 21.8° | 12.3° | 58.4mm | 11.9 | 76 |
| September | 19.5° | 10.1° | 50.8mm | 11.2 | 76 |
| October | 15.7° | 7.9° | 83.5mm | 15.2 | 56 |
| November | 11.6° | 4.3° | 83.3mm | 16.1 | 43 |
| December | 9.3° | 2.3° | 76.1mm | 16.2 | 36 |
January in Mendip averages a daily high of 8.7°C with nights around 1.7°C. Expect roughly 15 wet days totalling 66.9mm. A hard month to visit for comfort alone.
February in Mendip averages a daily high of 9.5°C with nights around 2.1°C. Expect roughly 13.2 wet days totalling 54.5mm. Demanding conditions — pack for it and plan indoor options.
March in Mendip averages a daily high of 11.6°C with nights around 3°C. Expect roughly 13.2 wet days totalling 52mm. Demanding conditions — pack for it and plan indoor options.
April in Mendip averages a daily high of 14.2°C with nights around 4.4°C. Expect roughly 11.7 wet days totalling 49.2mm. Generally workable, with some weather to plan around.
May in Mendip averages a daily high of 17.4°C with nights around 7.5°C. Expect roughly 12 wet days totalling 54.6mm. Generally workable, with some weather to plan around.
June in Mendip averages a daily high of 20.2°C with nights around 10.4°C. Expect roughly 10.5 wet days totalling 51.5mm. Comfortable conditions for being outdoors all day.
July in Mendip averages a daily high of 22°C with nights around 12.2°C. Expect roughly 11.8 wet days totalling 52.7mm. Comfortable conditions for being outdoors all day.
August in Mendip averages a daily high of 21.8°C with nights around 12.3°C. Expect roughly 11.9 wet days totalling 58.4mm. Comfortable conditions for being outdoors all day.
September in Mendip averages a daily high of 19.5°C with nights around 10.1°C. Expect roughly 11.2 wet days totalling 50.8mm. Comfortable conditions for being outdoors all day.
October in Mendip averages a daily high of 15.7°C with nights around 7.9°C. Expect roughly 15.2 wet days totalling 83.5mm. Generally workable, with some weather to plan around.
November in Mendip averages a daily high of 11.6°C with nights around 4.3°C. Expect roughly 16.1 wet days totalling 83.3mm. Demanding conditions — pack for it and plan indoor options.
December in Mendip averages a daily high of 9.3°C with nights around 2.3°C. Expect roughly 16.2 wet days totalling 76.1mm. Demanding conditions — pack for it and plan indoor options.
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. Mendip peaks at 79.
Based on 30 years of records, June–September scores highest for comfort in Mendip, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 22°C.
October is the wettest, averaging 83.5mm of rain across roughly 15.2 wet days.
January is the coolest month, with average daily highs around 8.7°C.