Average highs in Lisbon run from 15 °C (58 °F) in January to 28 °C (83 °F) in August. By the numbers, the best months to go are May, June, July, September.
average high to low each dot ≈ 3 rainy days
Pick a month
Lisbon climate table
| Month | High | Low | Rainy days | Rain | Sea | Daylight |
|---|---|---|---|---|---|---|
| January | 15°C / 58°F | 9°C / 48°F | 6 | 55 mm | 15°C | 9 h 44 min |
| February | 16°C / 61°F | 9°C / 49°F | 5 | 49 mm | 15°C | 10 h 42 min |
| March | 17°C / 63°F | 10°C / 50°F | 6 | 59 mm | 15°C | 11 h 50 min |
| April | 19°C / 67°F | 12°C / 54°F | 7 | 62 mm | 16°C | 13 h 10 min |
| May | 23°C / 73°F | 14°C / 58°F | 3 | 38 mm | 16°C | 14 h 16 min |
| June | 25°C / 77°F | 16°C / 61°F | 2 | 16 mm | 18°C | 14 h 52 min |
| July | 28°C / 82°F | 18°C / 64°F | 0 | 3 mm | 18°C | 14 h 37 min |
| August | 28°C / 83°F | 18°C / 65°F | 0 | 1 mm | 17°C | 13 h 40 min |
| September | 26°C / 79°F | 17°C / 63°F | 3 | 30 mm | 17°C | 12 h 23 min |
| October | 23°C / 73°F | 16°C / 60°F | 8 | 78 mm | 19°C | 11 h 06 min |
| November | 18°C / 65°F | 12°C / 54°F | 7 | 75 mm | 18°C | 10 h 00 min |
| December | 16°C / 60°F | 10°C / 51°F | 6 | 76 mm | 16°C | 9 h 28 min |
Our rule: a month scores 2 points for comfortable average highs of 18–28 °C (1 point for 14–18 or 28–32 °C) and 2 points for 5 or fewer rainy days (1 point for 6–10). Average highs above 35 °C or below 8 °C make it a tough month whatever the rain. A rainy day here means 2 mm of rain or more. 4 points = great, 3 = good, 2 = mixed, 0–1 = tough.
Good to know
- Typical daily budget: €55–120 (budget) to €150–300 (mid-range) per person, excluding flights.
- Usually high season: June, July, August.
- Where to stay: Baixa and Chiado for first-timers; Alfama for character; Príncipe Real for quiet streets.
Plan your Lisbon trip
- Best Time to Visit Portugal: Month-by-Month Guide 2026
- How to Plan a Trip on a Budget With AI (So the Total Actually Adds Up)
- 3 Days in Lisbon on a Budget — A Day-by-Day Itinerary
- Sintra Day Trip from Lisbon: Easy 2026 Plan + Real Costs
Nearby cities
Porto weather · Seville weather · Madrid weather · Marrakech weather
FAQ
What is the best month to visit Lisbon?
By weather alone, May, June, July, September score best: comfortable temperatures and few rainy days. Peak season is usually June, July, August, when rooms cost more.
What is the warmest month in Lisbon?
August, with average highs of 28 °C (83 °F).
What is the rainiest month in Lisbon?
October, with about 8 rainy days.
Sources: climate averages from Open-Meteo historical weather (ERA5 reanalysis, 2015–2024); sea temperatures from the Open-Meteo marine API (2023–2024); public holidays from Nager.Date. Daylight is calculated for the 15th of the month. Averages are a guide, not a forecast. Costs are typical ranges per person per day, excluding flights.