Early autumn · Weather & things to do
Coimbra in September
Coimbra cools off: highs slip to 86°F (30°C), from 92°F in August, with lows of 59°F (15°C) and about 1.6 in (40 mm) of rain.
September opens the best stretch on our comfort score, at 85/100 (4th of 12).
- Avg high
- 86°F (30°C)
- Avg low
- 59°F (15°C)
- Rain
- 1.6 in (40 mm)
- Humidity
- 59%
- Cloud cover
- 37%
- Daylight
- ~12 h 15 min
- Comfort score
- 85/100 · Great
What September feels like
Expect proper heat: afternoons average 86°F (30°C), so plan walking and hiking for the morning and save midday for shade, lunch or a swim.
Mornings start much cooler: lows average 59°F (15°C), about 15°C (27°F) below the afternoon high.
Rain is moderate at about 1.6 in (40 mm) for the month.
Plan around September
September is one of Coimbra's best months on the climate data.
- Last dry month before the rain picks up: October brings 4.7 in (119 mm).
- Opens the best-scoring stretch on our comfort score: April – June and September.
- Last of the best-scoring months: by October, the score drops to 82/100.
- Comfort improves from 73/100 in August to 85/100.
- Our Portugal by Rail route recommends Apr – Jun, so September falls outside its suggested window.
What to pack for September
- Light, breathable clotheshighs average 86°F
- Sunscreen, sunglasses and a hathigh UV on clear days
- Refillable water bottleeasy to dehydrate in the heat
- A warm layer for eveningslows near 59°F
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Coimbra in September
Start early and take shelter at midday: the picks below pair morning outings with places to cool off.
Pedro dos Leitões
Roast suckling pig specialist in Mealhada, 20 km north.
Why now A break from 86°F afternoons.
Mosteiro de Santa Cruz
Monastery holding the tombs of Portugal's first two kings.
University of Coimbra
Hilltop university founded in 1290, with a clock tower and courtyard views.
Fado ao Centro
Nightly short show of Coimbra fado, sung by men in student capes.
Parque Verde do Mondego
Riverside park and boardwalk along both banks of the Mondego.
Why now September scores 85/100 for comfort, good conditions for being outside.
Nearby in September
- Porto in September~67 mi · highs 74°F, 1.9 in rain · 7°C (12°F) cooler by day, about as wet
- Lisbon in September~109 mi · highs 72°F, 1.0 in rain · 8°C (15°F) cooler by day, drier
- Seville in September~234 mi · highs 90°F, 0.9 in rain · 2°C (4°F) warmer by day, drier
- Córdoba in September~252 mi · highs 90°F, 1.1 in rain · 2°C (4°F) warmer by day, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~425 m to Coimbra's ~42 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Coimbra in September: quick answers
Is September a good time to visit Coimbra?
Yes. On the climate data it's one of the best months, scoring 85/100. Expect highs of 86°F (30°C) and 1.6 in (40 mm) of rain. Our Portugal by Rail route recommends Apr – Jun, so September is outside its suggested window.
How hot is Coimbra in September?
Average highs are 86°F (30°C) and average lows 59°F (15°C), making it the 3rd-warmest month by daytime highs.
Does it rain a lot in Coimbra in September?
Not much: about 1.6 in (40 mm) of rain falls across September on average, the 4th-driest month of the year. The annual total is about 33.3 in (846 mm).
What should I pack for Coimbra in September?
Bring light, breathable clothes (highs average 86°F), sunscreen, sunglasses and a hat (high UV on clear days), refillable water bottle (easy to dehydrate in the heat), a warm layer for evenings (lows near 59°F) and comfortable walking shoes (most places below are best reached on foot or with short walks).
Planning Coimbra in September?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.