| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 12° | 4.8° | 112.7mm | 15.4 | 44 |
| February | 13° | 4.9° | 92.1mm | 12.8 | 52 |
| March | 15.1° | 6.2° | 82.7mm | 12.8 | 59 |
| April | 16.4° | 7.4° | 93.8mm | 14.6 | 59 |
| May | 18.8° | 9.9° | 82.1mm | 14.9 | 66 |
| June | 21.2° | 12.8° | 60.8mm | 11.6 | 77 |
| July | 23.1° | 14.8° | 44.6mm | 10.5 | 79 |
| August | 23.7° | 15° | 54.1mm | 10.3 | 79 |
| September | 22.2° | 13.3° | 63.4mm | 10.7 | 79 |
| October | 19.5° | 10.9° | 92.6mm | 13.7 | 71 |
| November | 14.3° | 7.2° | 144.9mm | 16.1 | 52 |
| December | 12.6° | 5.4° | 108.8mm | 14.8 | 47 |
January in Oviedo averages a daily high of 12°C with nights around 4.8°C. Expect roughly 15.4 wet days totalling 112.7mm. Demanding conditions — pack for it and plan indoor options.
February in Oviedo averages a daily high of 13°C with nights around 4.9°C. Expect roughly 12.8 wet days totalling 92.1mm. Demanding conditions — pack for it and plan indoor options.
March in Oviedo averages a daily high of 15.1°C with nights around 6.2°C. Expect roughly 12.8 wet days totalling 82.7mm. Generally workable, with some weather to plan around.
April in Oviedo averages a daily high of 16.4°C with nights around 7.4°C. Expect roughly 14.6 wet days totalling 93.8mm. Generally workable, with some weather to plan around.
May in Oviedo averages a daily high of 18.8°C with nights around 9.9°C. Expect roughly 14.9 wet days totalling 82.1mm. Generally workable, with some weather to plan around.
June in Oviedo averages a daily high of 21.2°C with nights around 12.8°C. Expect roughly 11.6 wet days totalling 60.8mm. Comfortable conditions for being outdoors all day.
July in Oviedo averages a daily high of 23.1°C with nights around 14.8°C. Expect roughly 10.5 wet days totalling 44.6mm. Comfortable conditions for being outdoors all day.
August in Oviedo averages a daily high of 23.7°C with nights around 15°C. Expect roughly 10.3 wet days totalling 54.1mm. Comfortable conditions for being outdoors all day.
September in Oviedo averages a daily high of 22.2°C with nights around 13.3°C. Expect roughly 10.7 wet days totalling 63.4mm. Comfortable conditions for being outdoors all day.
October in Oviedo averages a daily high of 19.5°C with nights around 10.9°C. Expect roughly 13.7 wet days totalling 92.6mm. Generally workable, with some weather to plan around.
November in Oviedo averages a daily high of 14.3°C with nights around 7.2°C. Expect roughly 16.1 wet days totalling 144.9mm. Demanding conditions — pack for it and plan indoor options.
December in Oviedo averages a daily high of 12.6°C with nights around 5.4°C. Expect roughly 14.8 wet days totalling 108.8mm. 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. Oviedo peaks at 79.
Based on 30 years of records, June–October scores highest for comfort in Oviedo, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 23.7°C.
November is the wettest, averaging 144.9mm of rain across roughly 16.1 wet days.
January is the coolest month, with average daily highs around 12°C.