| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 13.2° | 1.4° | 84.3mm | 10.1 | 57 |
| February | 15.4° | 3.2° | 94.5mm | 9.8 | 66 |
| March | 19.1° | 6.4° | 93.1mm | 10.1 | 77 |
| April | 23.5° | 10.8° | 78.6mm | 8.4 | 83 |
| May | 27° | 15.8° | 111.2mm | 10.3 | 79 |
| June | 30.3° | 20.2° | 131mm | 11.9 | 63 |
| July | 31.7° | 22.2° | 165.7mm | 13.4 | 54 |
| August | 31° | 21.7° | 182.9mm | 13.3 | 57 |
| September | 28.6° | 19.1° | 183.4mm | 10.8 | 72 |
| October | 24.1° | 12.8° | 100.1mm | 9.2 | 82 |
| November | 18.9° | 6.3° | 81.6mm | 9 | 78 |
| December | 15.4° | 3.6° | 95.8mm | 9.9 | 65 |
January in Jacksonville averages a daily high of 13.2°C with nights around 1.4°C. Expect roughly 10.1 wet days totalling 84.3mm. Generally workable, with some weather to plan around.
February in Jacksonville averages a daily high of 15.4°C with nights around 3.2°C. Expect roughly 9.8 wet days totalling 94.5mm. Generally workable, with some weather to plan around.
March in Jacksonville averages a daily high of 19.1°C with nights around 6.4°C. Expect roughly 10.1 wet days totalling 93.1mm. Comfortable conditions for being outdoors all day.
April in Jacksonville averages a daily high of 23.5°C with nights around 10.8°C. Expect roughly 8.4 wet days totalling 78.6mm. Comfortable conditions for being outdoors all day.
May in Jacksonville averages a daily high of 27°C with nights around 15.8°C. Expect roughly 10.3 wet days totalling 111.2mm. Comfortable conditions for being outdoors all day.
June in Jacksonville averages a daily high of 30.3°C with nights around 20.2°C. Expect roughly 11.9 wet days totalling 131mm. Generally workable, with some weather to plan around.
July in Jacksonville averages a daily high of 31.7°C with nights around 22.2°C. Expect roughly 13.4 wet days totalling 165.7mm. Demanding conditions — pack for it and plan indoor options.
August in Jacksonville averages a daily high of 31°C with nights around 21.7°C. Expect roughly 13.3 wet days totalling 182.9mm. Generally workable, with some weather to plan around.
September in Jacksonville averages a daily high of 28.6°C with nights around 19.1°C. Expect roughly 10.8 wet days totalling 183.4mm. Generally workable, with some weather to plan around.
October in Jacksonville averages a daily high of 24.1°C with nights around 12.8°C. Expect roughly 9.2 wet days totalling 100.1mm. Comfortable conditions for being outdoors all day.
November in Jacksonville averages a daily high of 18.9°C with nights around 6.3°C. Expect roughly 9 wet days totalling 81.6mm. Comfortable conditions for being outdoors all day.
December in Jacksonville averages a daily high of 15.4°C with nights around 3.6°C. Expect roughly 9.9 wet days totalling 95.8mm. 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. Jacksonville peaks at 83.
Based on 30 years of records, March–May scores highest for comfort in Jacksonville, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 31.7°C.
September is the wettest, averaging 183.4mm of rain across roughly 10.8 wet days.
January is the coolest month, with average daily highs around 13.2°C.