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 →

Coimbra🇵🇹 Portugal · Lisbon & Central Portugal · City94
  1. 66Jan
  2. 74Feb
  3. 75Mar
  4. 81Apr
  5. 92May
  6. 94Jun
  7. 88Jul
  8. 87Aug
  9. 90Sep
  10. 82Oct
  11. 70Nov
  12. 67Dec

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, Portugal
Photo: Alexjo · Pexels

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.

MonthScoreTierHighRainSunCrowdsOn
Jan66C14°C10 d7 hPeak2
Feb74B16°C8 d8 hPeak2
Mar75B17°C13 d9 hPeak3
Apr81A19°C12 d11 hPeak1
May92S23°C8 d12 hBusy1
Jun94S25°C7 d13 hPeak1
Jul88A29°C2 d13 hPeak2
Aug87A30°C1 d12 hBusy1
Sep90S27°C6 d11 hBusy—
Oct82A23°C12 d8 hBusy1
Nov70B17°C13 d7 hBusy2
Dec67C15°C11 d7 hPeak2

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

Everything on in Coimbra through the year →

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)

JFMAMJJASOND

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.
ItiMaker Travel · Read the original ↗

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.
Tripadvisor community · May · 1 month ago · Read more on Tripadvisor ↗
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.
Tripadvisor community · November · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Coimbra's card on the map.