| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -0.7° | -8.2° | 37.8mm | 10.1 | 10 |
| February | 1° | -7.8° | 30.8mm | 8.2 | 14 |
| March | 6.9° | -3° | 47.4mm | 10.4 | 30 |
| April | 14.1° | 2.8° | 69.5mm | 12.5 | 56 |
| May | 20.7° | 8.9° | 89.7mm | 12.6 | 75 |
| June | 25.9° | 14.5° | 80.4mm | 11.7 | 77 |
| July | 28.1° | 17° | 78mm | 10.8 | 74 |
| August | 26.9° | 16.3° | 77.4mm | 10.6 | 79 |
| September | 23.2° | 12.2° | 75.6mm | 11 | 78 |
| October | 15.8° | 5.9° | 66.3mm | 12.3 | 62 |
| November | 8.6° | 0.3° | 46.6mm | 9.5 | 42 |
| December | 2.2° | -4.5° | 42.4mm | 9.9 | 15 |
January in Waterford averages a daily high of -0.7°C with nights around -8.2°C. Expect roughly 10.1 wet days totalling 37.8mm. A hard month to visit for comfort alone.
February in Waterford averages a daily high of 1°C with nights around -7.8°C. Expect roughly 8.2 wet days totalling 30.8mm. A hard month to visit for comfort alone.
March in Waterford averages a daily high of 6.9°C with nights around -3°C. Expect roughly 10.4 wet days totalling 47.4mm. A hard month to visit for comfort alone.
April in Waterford averages a daily high of 14.1°C with nights around 2.8°C. Expect roughly 12.5 wet days totalling 69.5mm. Generally workable, with some weather to plan around.
May in Waterford averages a daily high of 20.7°C with nights around 8.9°C. Expect roughly 12.6 wet days totalling 89.7mm. Comfortable conditions for being outdoors all day.
June in Waterford averages a daily high of 25.9°C with nights around 14.5°C. Expect roughly 11.7 wet days totalling 80.4mm. Comfortable conditions for being outdoors all day.
July in Waterford averages a daily high of 28.1°C with nights around 17°C. Expect roughly 10.8 wet days totalling 78mm. Generally workable, with some weather to plan around.
August in Waterford averages a daily high of 26.9°C with nights around 16.3°C. Expect roughly 10.6 wet days totalling 77.4mm. Comfortable conditions for being outdoors all day.
September in Waterford averages a daily high of 23.2°C with nights around 12.2°C. Expect roughly 11 wet days totalling 75.6mm. Comfortable conditions for being outdoors all day.
October in Waterford averages a daily high of 15.8°C with nights around 5.9°C. Expect roughly 12.3 wet days totalling 66.3mm. Generally workable, with some weather to plan around.
November in Waterford averages a daily high of 8.6°C with nights around 0.3°C. Expect roughly 9.5 wet days totalling 46.6mm. Demanding conditions — pack for it and plan indoor options.
December in Waterford averages a daily high of 2.2°C with nights around -4.5°C. Expect roughly 9.9 wet days totalling 42.4mm. A hard month to visit for comfort alone.
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 79.
Based on 30 years of records, May–September scores highest for comfort in Waterford, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 28.1°C.
May is the wettest, averaging 89.7mm of rain across roughly 12.6 wet days.
January is the coolest month, with average daily highs around -0.7°C.