| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 11.9° | 3.5° | 45.6mm | 6.8 | 60 |
| February | 13.2° | 3.9° | 29mm | 5.4 | 67 |
| March | 16.4° | 6.4° | 31.5mm | 5.3 | 78 |
| April | 19.5° | 9.4° | 46.5mm | 6.6 | 85 |
| May | 23.7° | 13.4° | 38.7mm | 5.9 | 88 |
| June | 28.4° | 17.5° | 26.5mm | 3.6 | 87 |
| July | 31° | 19.9° | 11mm | 2.1 | 80 |
| August | 30.6° | 19.4° | 28.9mm | 3.4 | 79 |
| September | 26.1° | 16° | 72.5mm | 5.5 | 89 |
| October | 21.9° | 12.9° | 69.2mm | 6.7 | 87 |
| November | 15.9° | 7.8° | 77.8mm | 8.8 | 69 |
| December | 12.5° | 4.3° | 45.1mm | 7.1 | 62 |
January in Marseille 15 averages a daily high of 11.9°C with nights around 3.5°C. Expect roughly 6.8 wet days totalling 45.6mm. Generally workable, with some weather to plan around.
February in Marseille 15 averages a daily high of 13.2°C with nights around 3.9°C. Expect roughly 5.4 wet days totalling 29mm. Generally workable, with some weather to plan around.
March in Marseille 15 averages a daily high of 16.4°C with nights around 6.4°C. Expect roughly 5.3 wet days totalling 31.5mm. Comfortable conditions for being outdoors all day.
April in Marseille 15 averages a daily high of 19.5°C with nights around 9.4°C. Expect roughly 6.6 wet days totalling 46.5mm. Comfortable conditions for being outdoors all day.
May in Marseille 15 averages a daily high of 23.7°C with nights around 13.4°C. Expect roughly 5.9 wet days totalling 38.7mm. Comfortable conditions for being outdoors all day.
June in Marseille 15 averages a daily high of 28.4°C with nights around 17.5°C. Expect roughly 3.6 wet days totalling 26.5mm. Comfortable conditions for being outdoors all day.
July in Marseille 15 averages a daily high of 31°C with nights around 19.9°C. Rain is rare — about 2.1 wet days and 11mm across the month. Comfortable conditions for being outdoors all day.
August in Marseille 15 averages a daily high of 30.6°C with nights around 19.4°C. Expect roughly 3.4 wet days totalling 28.9mm. Comfortable conditions for being outdoors all day.
September in Marseille 15 averages a daily high of 26.1°C with nights around 16°C. Expect roughly 5.5 wet days totalling 72.5mm. Comfortable conditions for being outdoors all day.
October in Marseille 15 averages a daily high of 21.9°C with nights around 12.9°C. Expect roughly 6.7 wet days totalling 69.2mm. Comfortable conditions for being outdoors all day.
November in Marseille 15 averages a daily high of 15.9°C with nights around 7.8°C. Expect roughly 8.8 wet days totalling 77.8mm. Generally workable, with some weather to plan around.
December in Marseille 15 averages a daily high of 12.5°C with nights around 4.3°C. Expect roughly 7.1 wet days totalling 45.1mm. 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. Marseille 15 peaks at 89.
Based on 30 years of records, April–June scores highest for comfort in Marseille 15, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 31°C.
November is the wettest, averaging 77.8mm of rain across roughly 8.8 wet days.
January is the coolest month, with average daily highs around 11.9°C.