| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 10.1° | 6.3° | 78mm | 15.5 | 38 |
| February | 10.3° | 6.2° | 58.2mm | 12.9 | 43 |
| March | 12° | 7.2° | 50.3mm | 12.4 | 50 |
| April | 14.2° | 8.6° | 44.6mm | 11.2 | 59 |
| May | 17° | 11.3° | 40.4mm | 10.5 | 69 |
| June | 19.8° | 13.9° | 34.1mm | 9.2 | 81 |
| July | 21.4° | 15.5° | 38.6mm | 9.6 | 81 |
| August | 21.6° | 15.7° | 41.6mm | 9.6 | 81 |
| September | 20.2° | 14.2° | 42.8mm | 9.3 | 81 |
| October | 17° | 12.7° | 71.3mm | 14.4 | 62 |
| November | 13.5° | 9.5° | 84.1mm | 15.9 | 49 |
| December | 11.1° | 7.2° | 79.4mm | 16.1 | 42 |
January in Lorient averages a daily high of 10.1°C with nights around 6.3°C. Expect roughly 15.5 wet days totalling 78mm. Demanding conditions — pack for it and plan indoor options.
February in Lorient averages a daily high of 10.3°C with nights around 6.2°C. Expect roughly 12.9 wet days totalling 58.2mm. Demanding conditions — pack for it and plan indoor options.
March in Lorient averages a daily high of 12°C with nights around 7.2°C. Expect roughly 12.4 wet days totalling 50.3mm. Demanding conditions — pack for it and plan indoor options.
April in Lorient averages a daily high of 14.2°C with nights around 8.6°C. Expect roughly 11.2 wet days totalling 44.6mm. Generally workable, with some weather to plan around.
May in Lorient averages a daily high of 17°C with nights around 11.3°C. Expect roughly 10.5 wet days totalling 40.4mm. Generally workable, with some weather to plan around.
June in Lorient averages a daily high of 19.8°C with nights around 13.9°C. Expect roughly 9.2 wet days totalling 34.1mm. Comfortable conditions for being outdoors all day.
July in Lorient averages a daily high of 21.4°C with nights around 15.5°C. Expect roughly 9.6 wet days totalling 38.6mm. Comfortable conditions for being outdoors all day.
August in Lorient averages a daily high of 21.6°C with nights around 15.7°C. Expect roughly 9.6 wet days totalling 41.6mm. Comfortable conditions for being outdoors all day.
September in Lorient averages a daily high of 20.2°C with nights around 14.2°C. Expect roughly 9.3 wet days totalling 42.8mm. Comfortable conditions for being outdoors all day.
October in Lorient averages a daily high of 17°C with nights around 12.7°C. Expect roughly 14.4 wet days totalling 71.3mm. Generally workable, with some weather to plan around.
November in Lorient averages a daily high of 13.5°C with nights around 9.5°C. Expect roughly 15.9 wet days totalling 84.1mm. Demanding conditions — pack for it and plan indoor options.
December in Lorient averages a daily high of 11.1°C with nights around 7.2°C. Expect roughly 16.1 wet days totalling 79.4mm. 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. Lorient peaks at 81.
Based on 30 years of records, June–September scores highest for comfort in Lorient, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 21.6°C.
November is the wettest, averaging 84.1mm of rain across roughly 15.9 wet days.
January is the coolest month, with average daily highs around 10.1°C.