Monthly climate averages for Coimbra, Portugal. Based on 10-year ERA5 reanalysis data.
Csa Hot-Summer Mediterranean
Climate OverviewCoimbra, Portugal in May has warm conditions, with highs averaging 22.6°C (73°F). Temperatures drop noticeably between day and night.
This month falls at the end of Spring.
Daily highs in May gradually rise from around 22°C (71°F) at the start to 25°C (77°F) by month's end.
Rainfall is heaviest during the first third of the month, while the middle tends to be drier.
The warmest days tend to fall around the 31th, averaging 25.4°C (78°F).
Compared to April, this month is about 3°C warmer with 3 fewer rainy days. Temperatures will rise further into June.
Daily averages based on historical data (2016–2025)
Daytime temperatures around 23°C (73°F) are ideal for full-day outdoor exploration.
Rain usually comes in shorter passing showers rather than all-day rain.
2 of the last 5 yearly records were warmer than this month's long-run average.
| Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 14°C / 5°C | 12°C / 3°C | 10days (109 mm) Wet | 6.5h Fair | 83% Humid | 2.4 Moderate | Fair | View Details |
| February | 16°C / 6°C | 14°C / 4°C | 8days (80 mm) Wet | 7.8h Good | 80% Humid | 3.4 Moderate | Fair | View Details |
| March | 17°C / 7°C | 15°C / 5°C | 13days (116 mm) Wet | 9.1h Good | 79% Humid | 4.9 Moderate | Good | View Details |
| April | 19°C / 10°C | 19°C / 8°C | 11days (110 mm) Wet | 10.5h Excellent | 77% Humid | 6.2 High | Good | View Details |
| May | 23°C / 12°C | 23°C / 11°C | 8days (59 mm) Wet | 11.8h Excellent | 74% Muggy | 6.8 High | Good | View Details |
| June best | 25°C / 15°C | 26°C / 15°C | 6days (29 mm) Good | 12.5h Excellent | 74% Muggy | 7.5 Very High | Excellent | View Details |
| July best | 29°C / 16°C | 30°C / 17°C | 2days (7 mm) Excellent | 12.8h Excellent | 69% Muggy | 7.7 Very High | Excellent | View Details |
| August best | 30°C / 17°C | 31°C / 17°C | 1days (4 mm) Excellent | 12.1h Excellent | 68% Muggy | 7.3 Very High | Excellent | View Details |
| September best | 27°C / 15°C | 27°C / 15°C | 5days (44 mm) Good | 10.5h Excellent | 71% Muggy | 5.7 High | Excellent | View Details |
| October | 23°C / 13°C | 23°C / 13°C | 11days (125 mm) Wet | 8.3h Good | 76% Humid | 4 Moderate | Good | View Details |
| November | 17°C / 9°C | 16°C / 7°C | 13days (135 mm) Wet | 6.8h Fair | 84% Humid | 2.8 Moderate | Good | View Details |
| December | 15°C / 7°C | 13°C / 5°C | 11days (109 mm) Wet | 6.5h Fair | 85% Humid | 2.3 Moderate | Fair | View Details |
Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.
Temperatures drop significantly at night, so pack layers you can add or remove throughout the day.
A waterproof jacket or compact umbrella is recommended for occasional showers.
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