Coimbra weather in August
August in Coimbra: hot, dry, with clean air — an excellent time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#5 of 12 months in Coimbra · #358 of 1413 destinations to visit in August · comfort 87/100 (tier A)
- Days
- 30°C
- Nights
- 17°C
- Wet days
- 1
- Sun
- 12.1 h
- Humidity
- 68%
- Daylight
- 14 h

Traveller notes on Coimbra in August
Notes from nearby Nazaré (87 km away)
Coimbra doesn't have its own notes for August yet — these are about Nazaré, close enough to share the season.
Two expectations need correcting for an August visit. The giant waves Nazare is famous for are a winter phenomenon - November is the peak, and October to March the season - so in August the surf here is ordinary. And this is the Atlantic, not the Mediterranean: regulars describe the beach as often windy even in high summer and the water as cold whatever the air is doing, with nights around 15 to 17C and a light jumper wanted in the evening. What August does give is the town at its liveliest and the clifftop funicular view without the winter crowds of wave-watchers. The record: 25.7C days, 17.1C nights, half a precipitation day, 12.2 hours of sun, a 17.2C sea and a 23 kph wind.
Other months in Coimbra
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.
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.
Add your own note from Coimbra's card on the map.
Coimbra climate normals — August
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Coimbra in August
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.
BusySummer holidays in Portugal, school holidays in 7 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Coimbra's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherCoimbra's best weather comes in May, June and September — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Coimbra in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Mondego valley heat
1 Jul – 31 AugExtreme heatThe valley sits far enough from the sea to lose the Atlantic breeze, and the university hill is all stone stairs in full sun. Sightseeing here is a morning job in high summer. Source ↗
Nearby, and something's on
Within 300 km of Coimbra — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Coimbra?
Coimbra in August — FAQ
- Is August a good time to visit Coimbra?
- August in Coimbra: hot, dry, with clean air — an excellent time to visit. It ranks #5 of 12 months for Coimbra on SeasonMap's comfort score (87/100).
- What is the weather like in Coimbra in August?
- In August, Coimbra averages a daily high of 29.6°C and a low of 16.7°C, with about 4.4 mm of rain over roughly 1.1 rainy days.
- What is the air quality in Coimbra in August?
- Coimbra has a mean US Air Quality Index of about 37 in August.
Within 300 km: Ericeira's Festas da Senhora da Boa Viagem around 5–18 Aug, and Évora's Cork stripping around 15 May – 31 Aug.