Weather in Lisbon in August
As an Amazon Associate we earn from qualifying purchases. We also earn commission from other retail partners. Links below are affiliate links.
Book now, pay at pickup — compare Hertz, Avis, Budget, Sixt and 800+ rental companies for August in Lisbon.
Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youLisbon in August is hot — daytime temperatures average 28.3°C, dropping to 18.4°C at night. The month is very dry, with roughly 12.3 hours of sunshine a day. Weather-wise, this is one of the most reliable months to travel. For the complete picture, see the best time to visit Lisbon — every month compared. Once you know when to go, find your Lisbon packing list at 247PackingList.
Get ready for Lisbon in August
Search flights to Lisbon
Compare 100+ airlines for August — one search, best price.
Search Flights →Travel clothing layers
Pack layers — temperatures can vary significantly between day and night.
Check Price →What to pack for Lisbon in August
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
Compare all months in Lisbon
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 14.5°C | 35.9mm | 10/10 |
| February | 16.7°C | 53.5mm | 10/10 |
| March | 17.9°C | 48.6mm | 10/10 |
| April | 19.7°C | 70.5mm | 10/10 |
| May | 23.6°C | 25.8mm | 10/10 |
| June | 25.0°C | 16.8mm | 10/10 |
| July | 29.1°C | 0.3mm | 10/10 |
| August | 28.3°C | 1.2mm | 10/10 |
| September | 25.7°C | 62.0mm | 10/10 |
| October | 23.6°C | 95.2mm | 10/10 |
| November | 18.3°C | 58.7mm | 10/10 |
| December | 16.1°C | 119.6mm | 9/10 |
Full month-by-month guide: best time to visit Lisbon →
For facts about Portugal — currency, language and dialling code — see our Portugal country guide at 247CountryInfo. Travellers also find it useful to keep a Lisbon travel guide to hand. Check clothing sizes in Portugal before you shop.
Frequently Asked Questions
Is August a good time to visit Lisbon?
August rates 10/10 for visiting Lisbon — excellent time to visit. Expect average highs of 28.3°C, 1.2mm of rain across the month and about 12.3 hours of daily sunshine.
What is the temperature in Lisbon in August?
In August, Lisbon has average highs of 28.3°C (82.9°F) and average lows of 18.4°C (65.1°F).
Does it rain in Lisbon in August?
Rarely. August is one of the driest times of year in Lisbon, averaging only 1.2mm of rain.
What should I wear in Lisbon in August?
For Lisbon in August (28.3°C highs / 18.4°C lows), pack light layers plus sunscreen, t-shirts and light trousers or shorts.
More essentials for Lisbon in August
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
Check Price →Last updated:
Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.