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Best time to visit · Portugal
On the climate data, the best time to visit Coimbra is April – June and September, scoring up to 91/100 with highs around 76°F (25°C) and 2.1 in (53 mm) of rain in May. February & March and October & November are good shoulder-season months. The toughest months are August and December & January, mainly because of cloud cover.
Highs run from 56°F to 92°F across the year, and the yearly total is about 33.3 in (846 mm) of rain.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 56°F14°C | 59°F15°C | 64°F18°C | 69°F20°C | 76°F25°C | 85°F29°C | 91°F33°C | 92°F34°C | 86°F30°C | 75°F24°C | 63°F17°C | 57°F14°C |
| Avg low | 42°F5°C | 42°F5°C | 45°F7°C | 49°F9°C | 53°F12°C | 58°F15°C | 61°F16°C | 62°F17°C | 59°F15°C | 54°F12°C | 47°F8°C | 42°F6°C |
| Rain | 4.3 in108 mm | 3.2 in82 mm | 3.7 in93 mm | 3.2 in82 mm | 2.1 in53 mm | 1.0 in25 mm | 0.4 in9 mm | 0.6 in14 mm | 1.6 in40 mm | 4.7 in119 mm | 4.8 in121 mm | 3.9 in100 mm |
| Humidity | 88% | 84% | 81% | 78% | 72% | 65% | 57% | 54% | 59% | 73% | 85% | 88% |
| Cloud | 58% | 53% | 55% | 53% | 47% | 44% | 34% | 32% | 37% | 50% | 53% | 57% |
| Comfort | 69 | 78 | 84 | 87 | 91 | 87 | 75 | 73 | 85 | 82 | 80 | 72 |
Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. Temperatures were adjusted from the grid cell's ~425 m (1,394 ft) to Coimbra's ~42 m (138 ft) elevation using the standard lapse rate of 6.5°C per 1,000 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
The cold peaks here: highs of 56–59°F (14–15°C), and nights reach 42°F (5°C). It's the wettest season, with about 11.4 in (290 mm) of rain, 34% of the year's total. It holds the toughest stretch on our comfort score (December & January), averaging 73/100.
Temperatures climb through the season, from 64°F highs in March to 76°F by May. About 9.0 in (228 mm) of rain falls across these months, 27% of the year's total. Lows bottom out around 45°F (7°C). April & May are among the best-scoring months (season average 87/100).
The warmest stretch of the year, with highs of 85–92°F (29–34°C). It's the driest season, with only about 1.9 in (48 mm) of rain, 6% of the year's total. Lows bottom out around 58°F (15°C). Comfort peaks here: June ranks with the year's best, and the season averages 78/100.
Temperatures slide from 86°F highs in September to 63°F by November. About 11.0 in (280 mm) of rain falls across these months, 33% of the year's total. Lows bottom out around 47°F (8°C). September is among the best-scoring months (season average 82/100).
By comfort score: 9 Great and 3 Good. Great months: February – July and September – November. Tap a month for its own guide.
On the climate data, the best time to visit Coimbra is April – June and September, scoring up to 91/100 with highs around 76°F (25°C) and 2.1 in (53 mm) of rain in May. February & March and October & November are good shoulder-season months. The toughest months are August and December & January, mainly because of cloud cover.
November is the wettest month, averaging about 4.8 in (121 mm) of rain. July is the driest, with about 0.4 in (9 mm). The yearly total is around 33.3 in (846 mm).
January is the coldest, with average lows of 42°F (5°C) and highs of 56°F (14°C). The warmest is August, with average highs of 92°F (34°C).
Not very: summer (June – August) humidity averages 59%, and highs peak around 92°F (34°C), so heat matters more than mugginess.
The wettest three-month stretch is October – December, with about 13.4 in (340 mm) of rain combined. The driest stretch is June – August, with about 1.9 in (48 mm).
Poll the group on April – June and September dates, then plan the days, packing and costs together.
