| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 7.7° | 1° | — | — | 53 |
| February | 8.7° | 1.5° | — | — | 57 |
| March | 11.1° | 2.3° | — | — | 66 |
| April | 14.3° | 3.7° | — | — | 76 |
| May | 17.6° | 6.7° | — | — | 86 |
| June | 20.4° | 9.5° | — | — | 94 |
| July | 22.6° | 11.4° | — | — | 94 |
| August | 22.2° | 11.5° | — | — | 94 |
| September | 19.4° | 9.3° | — | — | 92 |
| October | 15.2° | 7° | — | — | 79 |
| November | 10.8° | 3.6° | — | — | 65 |
| December | 8.2° | 1.7° | — | — | 56 |
January in Folkestone averages a daily high of 7.7°C with nights around 1°C. Demanding conditions — pack for it and plan indoor options.
February in Folkestone averages a daily high of 8.7°C with nights around 1.5°C. Generally workable, with some weather to plan around.
March in Folkestone averages a daily high of 11.1°C with nights around 2.3°C. Generally workable, with some weather to plan around.
April in Folkestone averages a daily high of 14.3°C with nights around 3.7°C. Comfortable conditions for being outdoors all day.
May in Folkestone averages a daily high of 17.6°C with nights around 6.7°C. Comfortable conditions for being outdoors all day.
June in Folkestone averages a daily high of 20.4°C with nights around 9.5°C. Comfortable conditions for being outdoors all day.
July in Folkestone averages a daily high of 22.6°C with nights around 11.4°C. Comfortable conditions for being outdoors all day.
August in Folkestone averages a daily high of 22.2°C with nights around 11.5°C. Comfortable conditions for being outdoors all day.
September in Folkestone averages a daily high of 19.4°C with nights around 9.3°C. Comfortable conditions for being outdoors all day.
October in Folkestone averages a daily high of 15.2°C with nights around 7°C. Comfortable conditions for being outdoors all day.
November in Folkestone averages a daily high of 10.8°C with nights around 3.6°C. Generally workable, with some weather to plan around.
December in Folkestone averages a daily high of 8.2°C with nights around 1.7°C. Generally workable, with some weather to plan around.
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. Folkestone peaks at 94.
Based on 30 years of records, May–September scores highest for comfort in Folkestone, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 22.6°C.
January is the wettest, averaging —mm of rain across roughly — wet days.
January is the coolest month, with average daily highs around 7.7°C.