| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 19.3° | 8.3° | 86.4mm | 6 | 86 |
| February | 19.1° | 8.6° | 91.8mm | 6.4 | 84 |
| March | 20° | 9.9° | 46.3mm | 4.9 | 90 |
| April | 21.1° | 10.9° | 16.5mm | 2.4 | 95 |
| May | 21.9° | 13° | 7.4mm | 1.5 | 97 |
| June | 23.2° | 15° | 1.4mm | 0.5 | 99 |
| July | 25.3° | 16.5° | 1.5mm | 0.5 | 99 |
| August | 25.6° | 16.8° | 2.6mm | 0.1 | 100 |
| September | 25.6° | 16.3° | 1.7mm | 0.4 | 99 |
| October | 24.2° | 13.8° | 11.8mm | 1.8 | 96 |
| November | 21.5° | 10.4° | 19.7mm | 3.3 | 93 |
| December | 19° | 8.2° | 61.4mm | 5.9 | 85 |
January in Wilmington averages a daily high of 19.3°C with nights around 8.3°C. Expect roughly 6 wet days totalling 86.4mm. Comfortable conditions for being outdoors all day.
February in Wilmington averages a daily high of 19.1°C with nights around 8.6°C. Expect roughly 6.4 wet days totalling 91.8mm. Comfortable conditions for being outdoors all day.
March in Wilmington averages a daily high of 20°C with nights around 9.9°C. Expect roughly 4.9 wet days totalling 46.3mm. Comfortable conditions for being outdoors all day.
April in Wilmington averages a daily high of 21.1°C with nights around 10.9°C. Rain is rare — about 2.4 wet days and 16.5mm across the month. Comfortable conditions for being outdoors all day.
May in Wilmington averages a daily high of 21.9°C with nights around 13°C. Rain is rare — about 1.5 wet days and 7.4mm across the month. Comfortable conditions for being outdoors all day.
June in Wilmington averages a daily high of 23.2°C with nights around 15°C. Rain is rare — about 0.5 wet days and 1.4mm across the month. Comfortable conditions for being outdoors all day.
July in Wilmington averages a daily high of 25.3°C with nights around 16.5°C. Rain is rare — about 0.5 wet days and 1.5mm across the month. Comfortable conditions for being outdoors all day.
August in Wilmington averages a daily high of 25.6°C with nights around 16.8°C. Rain is rare — about 0.1 wet days and 2.6mm across the month. Comfortable conditions for being outdoors all day.
September in Wilmington averages a daily high of 25.6°C with nights around 16.3°C. Rain is rare — about 0.4 wet days and 1.7mm across the month. Comfortable conditions for being outdoors all day.
October in Wilmington averages a daily high of 24.2°C with nights around 13.8°C. Rain is rare — about 1.8 wet days and 11.8mm across the month. Comfortable conditions for being outdoors all day.
November in Wilmington averages a daily high of 21.5°C with nights around 10.4°C. Expect roughly 3.3 wet days totalling 19.7mm. Comfortable conditions for being outdoors all day.
December in Wilmington averages a daily high of 19°C with nights around 8.2°C. Expect roughly 5.9 wet days totalling 61.4mm. Comfortable conditions for being outdoors all day.
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. Wilmington peaks at 100.
Based on 30 years of records, April–November scores highest for comfort in Wilmington, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 25.6°C.
February is the wettest, averaging 91.8mm of rain across roughly 6.4 wet days.
December is the coolest month, with average daily highs around 19°C.