| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 9.3° | 3.3° | 104mm | 18.3 | 36 |
| February | 9.6° | 2.9° | 74.7mm | 14.6 | 38 |
| March | 11.2° | 4° | 79.9mm | 14.9 | 42 |
| April | 13.6° | 5.7° | 72.8mm | 13.8 | 52 |
| May | 16.5° | 8.3° | 66.6mm | 13.5 | 62 |
| June | 19.1° | 10.8° | 63.9mm | 11.7 | 74 |
| July | 20.8° | 12.5° | 68.1mm | 13 | 74 |
| August | 20.5° | 12.5° | 78.1mm | 14 | 72 |
| September | 18.4° | 10.7° | 76.5mm | 13 | 69 |
| October | 15.1° | 8.4° | 130mm | 18 | 54 |
| November | 11.6° | 5.2° | 112.4mm | 17.9 | 43 |
| December | 9.7° | 3.9° | 113.9mm | 18.6 | 37 |
January in Waterford averages a daily high of 9.3°C with nights around 3.3°C. Expect roughly 18.3 wet days totalling 104mm. Demanding conditions — pack for it and plan indoor options.
February in Waterford averages a daily high of 9.6°C with nights around 2.9°C. Expect roughly 14.6 wet days totalling 74.7mm. Demanding conditions — pack for it and plan indoor options.
March in Waterford averages a daily high of 11.2°C with nights around 4°C. Expect roughly 14.9 wet days totalling 79.9mm. Demanding conditions — pack for it and plan indoor options.
April in Waterford averages a daily high of 13.6°C with nights around 5.7°C. Expect roughly 13.8 wet days totalling 72.8mm. Demanding conditions — pack for it and plan indoor options.
May in Waterford averages a daily high of 16.5°C with nights around 8.3°C. Expect roughly 13.5 wet days totalling 66.6mm. Generally workable, with some weather to plan around.
June in Waterford averages a daily high of 19.1°C with nights around 10.8°C. Expect roughly 11.7 wet days totalling 63.9mm. Generally workable, with some weather to plan around.
July in Waterford averages a daily high of 20.8°C with nights around 12.5°C. Expect roughly 13 wet days totalling 68.1mm. Generally workable, with some weather to plan around.
August in Waterford averages a daily high of 20.5°C with nights around 12.5°C. Expect roughly 14 wet days totalling 78.1mm. Generally workable, with some weather to plan around.
September in Waterford averages a daily high of 18.4°C with nights around 10.7°C. Expect roughly 13 wet days totalling 76.5mm. Generally workable, with some weather to plan around.
October in Waterford averages a daily high of 15.1°C with nights around 8.4°C. Expect roughly 18 wet days totalling 130mm. Demanding conditions — pack for it and plan indoor options.
November in Waterford averages a daily high of 11.6°C with nights around 5.2°C. Expect roughly 17.9 wet days totalling 112.4mm. Demanding conditions — pack for it and plan indoor options.
December in Waterford averages a daily high of 9.7°C with nights around 3.9°C. Expect roughly 18.6 wet days totalling 113.9mm. 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. Waterford peaks at 74.
Based on 30 years of records, June–September scores highest for comfort in Waterford, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 20.8°C.
October is the wettest, averaging 130mm of rain across roughly 18 wet days.
January is the coolest month, with average daily highs around 9.3°C.