Coimbra weather by month
The best time to visit Coimbra is May, June and September — 94/100 in June, 25°C and 7 rainy days. The best season is summer, June to August (90/100 on average).
The worst month is January at 66/100 — cool, rainy, clean air. See January →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Portugal →
Best season: June to August (90/100 on average) · worst January (66/100)
- Days
- 25°C
- Nights
- 15°C
- Wet days
- 7
- Sun
- 12.5 h
- Humidity
- 74%
- Daylight
- 15 h

Coimbra, month by month
Comfort score out of 100 for the kind of trip Coimbra is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
What's on in Coimbra through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
- January
- Carnival in Ovar25 Jan – 10 Mar (usually)Festival
- March
- Easter week29 Mar – 5 AprHoliday
- May
- Queima das Fitas22–30 MayFestival
- June
- Santos Populares1–30 Jun (usually)Festival
- July
- Festas da Rainha Santa Isabel1–15 Jul (usually)Festival
- Mondego valley heat1 Jul – 31 AugHazard
- October
- Festa das Latas1–4 OctFestival
- November
- Caminhos do Cinema Português8–25 Nov (usually)Festival
- Christmas market and lights25 Nov – 23 Dec (usually)Festival
- December
- Mondego river floods15 Dec – 15 Mar (usually)Hazard
Crowds in Coimbra in June
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsSantos Populares, Summer holidays in Portugal, school holidays in 4 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Good to know before you go to Coimbra
Real experiences from travellers' own write-ups, quoted with a link to the original.
Visas & entry
A first-timer's guide to Coimbra's Biblioteca Joanina stresses booking a timed entry slot online well ahead, especially in peak season, since walk-up access isn't reliable and photography isn't allowed inside once you're in. Their practical warning about the city itself: Coimbra is genuinely hilly, so budget for real uphill walking between sights, or just take a taxi or local bus for the steeper stretches rather than assume every walk will be flat like the riverside sections suggest.
Traveller notes on Coimbra
What people who have been say about the place — the year-round notes first, then month by month.
Forum posters describe May in central Portugal as edging toward summer, with typical daytime temperatures in the 20-23C range cooling to around 13C overnight. Opinions on packing split a little: some posters say shorts and sandals are enough given how close the weather is to summer, while others recommend bringing a light jacket since rain remains a real possibility this early in the season. For Coimbra specifically - a university town known for its historic architecture along the Mondego river - posters describe it as a pleasant, walkable size for a day or two, with a genuinely hot day always possible even in May, per one visitor who ducked into a shopping mall's food court specifically to escape unexpected heat.
Forum posters describe November in Coimbra as genuinely variable - one visitor's four-day stay brought rain almost every day, while posters more broadly describe a typical visit needing only a shower or two in the morning, with some years bringing lots of warm weather punctuated by the odd rainy day and chilly evenings. Posters consistently recommend packing a raincoat and umbrella, and good walking shoes given how slippery Coimbra's cobbled streets get when wet. Posters are direct that November counts among Portugal's more difficult, rain-prone months overall, but also one of the least touristic alongside January, meaning shorter lines and quieter sightseeing at Coimbra's university and historic sites. Posters generally rate November as genuinely rain-prone but rewarding for a Coimbra visit, with low crowds a real upside of the wetter shoulder season.
Add your own note from Coimbra's card on the map.