Weather overview
Коимбра enjoys a mild climate with distinct seasonal changes, making it a year-round destination. Winters here are gentle, with temperatures rarely dropping below 5 °C, while summers bring warmth without extreme heat. The city’s location in central Portugal ensures a balance between coastal breezes and inland influences.
From November to February, Коимбра experiences its coolest and wettest months, with frequent rain showers. Spring arrives in March, bringing milder weather and blooming landscapes. The dry season starts in June and lasts through August, offering sunny days and comfortable warmth. Autumn in Коимбра is mild, with September and October providing pleasant conditions before the rains return.
Temperature
In Коимбра, temperatures vary smoothly across the year, with no sharp extremes. The coldest months, January and December, see average highs of around 15 °C and lows near 5–6 °C. Frost is rare, and even winter days can feel mild when the sun is out.
Summer in Коимбра is warm but not oppressive. From June to September, daytime temperatures typically range between +20 °C and +29 °C, with July and August being the hottest months. Nights remain comfortable, rarely exceeding +16 °C. Spring and autumn offer transitional weather, with April and May warming up to +15...+23 °C, while October cools to +17...+22 °C.
| Month | Minimum | Maximum |
|---|---|---|
| January | 5.3 | 14.9 |
| February | 5.7 | 16.4 |
| March | 8 | 19.5 |
| April | 9.2 | 20.4 |
| May | 11.7 | 23 |
| June | 14.5 | 26.5 |
| July | 15.6 | 28.4 |
| August | 15.9 | 28.9 |
| September | 14.2 | 26.7 |
| October | 12 | 22.4 |
| November | 8.4 | 17.7 |
| December | 6.4 | 15.3 |
Precipitation
Коимбра has a clear wet and dry season pattern. The rainiest period spans from October to January, with December and January receiving the most precipitation—over 110 mm each. Rainfall is frequent but rarely disruptive, often coming in short bursts rather than prolonged downpours.
From June to August, Коимбра experiences its driest months, with rainfall dropping below 25 mm. July is the driest, with just 9.7 mm on average. September marks the transition back to wetter conditions, though early autumn can still offer plenty of dry days. If you prefer avoiding rain, plan your visit to Коимбра between June and August.
| Month | Precipitation |
|---|---|
| January | 114.7 |
| February | 76.9 |
| March | 68.4 |
| April | 80.8 |
| May | 69.9 |
| June | 24.4 |
| July | 9.7 |
| August | 16.5 |
| September | 61.7 |
| October | 128.1 |
| November | 123.7 |
| December | 117.3 |
What to pack
For a winter trip to Коимбра, pack layers to adapt to mild but variable weather. A light jacket or sweater will suffice for daytime, while evenings may require something warmer. Waterproof footwear is useful, especially in December and January, when rain is more frequent.
Summer in Коимбра calls for light, breathable clothing. Daytime temperatures in July and August can reach +28–29 °C, so shorts, T-shirts, and sun protection are essential. Evenings are cooler, so a light shawl or long-sleeve shirt is a good idea. For spring and autumn visits, bring a mix of short- and long-sleeve options, as temperatures shift between +15 °C and +25 °C.