June
★ Best time
26° / 16°C
3 rain days
warm, dry
- comfortable temperatures (avg high 26°C / 79°F)
- very low rainfall (only 3 rain days)
- warm evenings without humidity overload
Best time to visit Lisbon
Lisbon, Portugal — ranked month by month from data: temperature, rainfall, snow, and peak hazard seasons. The standouts: June, July, September.
★ Best months to visit
July
★ Best time
28° / 17°C
1 rain days
hot, dry
- very low rainfall (only 1 rain days)
- warm evenings without humidity overload
September
★ Best time
27° / 17°C
5 rain days
warm
- comfortable temperatures (avg high 27°C / 81°F)
- very low rainfall (only 5 rain days)
- warm evenings without humidity overload
August
★ Best time
29° / 18°C
1 rain days
hot, dry
- very low rainfall (only 1 rain days)
- warm evenings without humidity overload
May
★ Best time
22° / 13°C
6 rain days
warm
- comfortable temperatures (avg high 22°C / 72°F)
- very low rainfall (only 6 rain days)
March
★ Best time
18° / 10°C
9 rain days
mild
- comfortable temperatures (avg high 18°C / 64°F)
- manageable rain (9 days)
April
★ Best time
19° / 11°C
9 rain days
mild
- comfortable temperatures (avg high 19°C / 66°F)
- manageable rain (9 days)
October
★ Best time
22° / 14°C
9 rain days
warm
- comfortable temperatures (avg high 22°C / 72°F)
- manageable rain (9 days)
- warm evenings without humidity overload
November
★ Best time
18° / 11°C
11 rain days
mild, rainy
- comfortable temperatures (avg high 18°C / 64°F)
February
★ Best time
16° / 8°C
9 rain days
mild
- manageable rain (9 days)
January
★ Best time
15° / 8°C
11 rain days
cool, rainy
December
★ Best time
15° / 9°C
12 rain days
cool, rainy
How we ranked these
Each month is scored on temperature comfort (18–27°C avg high is the sweet spot), rainfall (more rain days = lower score), snow days, and peak hazard seasons (hurricanes, monsoons, etc.). Green-tier months are within ideal range with no major issues. Yellow are workable but with trade-offs. Red has at least one significant problem — extreme heat or cold, heavy rain, or peak storm season.