AI-generatedLisbon at a glance
- Best time
- May – Sep
- Warmest month
- Aug · 24°
- Warmest sea
- Sep · 18.8°
- Sunshine a year
- 2,750 h
- Rain a year
- 565 mm
- Climate
- Mediterranean
- Time zone
- UTC+0 / UTC+1
- Elevation
- 68 m
Climate in Lisbon
Lisbon has a Mediterranean climate with warm to hot, dry summers and mild, wetter winters. August is the warmest month with average highs of 24 °C, while January is the coolest at 14 °C. With around 2,750 hours of sunshine a year, Lisbon is sunny; July is the sunniest month with 10.9 hours a day.
Holiday weather through the year
Weather in October
Holiday weather in October
Excellent
Best time to visit: May – September
A typical day in October
- Morning, 08:00: about 17°
- Midday, 13:00: about 20°
- Afternoon, 16:00: about 21°
- Evening, 20:00: about 19°
- Night, 23:00: about 18°
07:4419:00
Pleasant evenings; a light layer can help.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
What is the weather like in Lisbon in October?
In October, Lisbon is mild: daytime highs average 21 °C, and nights cool down to about 16 °C. The sea averages 18.5 °C – bracing, so a wetsuit helps for longer swims. Expect around 6 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 75 mm in total. All in all, October is an excellent month for a holiday in Lisbon.
More details for October
- Daylight
- 11 h 15 min07:44 – 19:00
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 2 daysdew point 18 °C or more
- Wind
- 22 km/haverage daily peak
- Cloud cover
- 51 %on average
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+1Europe/Lisbon
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %53 %
- Few rainy daysweight 30 %64 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in October
- Wetsuit for longer swims
- Sunscreen
- Rain jacket or umbrella
Sea temperature in Lisbon
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 17.3 – 19.5 °C
Swimming season: Never above 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Lisbon ranges from 14.8 °C in February to 18.8 °C in September. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
The sea warms up slowly: it is warmest in September, while the air already peaks in August. From November to January the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in September, eight out of ten years were between 18.0 and 19.7 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | 15.4° | 14.8° | 16.2° | cold |
| FebruaryFeb | 14.8° | 13.9° | 15.5° | cold |
| MarchMar | 14.9° | 14.1° | 15.5° | cold |
| AprilApr | 15.7° | 14.9° | 16.8° | cold |
| MayMay | 16.5° | 15.5° | 17.4° | cold |
| JuneJun | 17.8° | 17.1° | 18.6° | fresh |
| JulyJul | 18.2° | 17.7° | 18.9° | fresh |
| AugustAug | 18.6° | 17.8° | 19.6° | fresh |
| SeptemberSep | 18.8° | 18.0° | 19.7° | fresh |
| OctoberOct | 18.5° | 17.3° | 19.5° | fresh |
| NovemberNov | 17.3° | 16.1° | 18.4° | fresh |
| DecemberDec | 16.1° | 15.4° | 16.8° | cold |
Sunshine hours in Lisbon
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 6.2 of 11.3 hours of daylight in Lisbon, 55 % of the day.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
UV index in Lisbon
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 4 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.
The sun is strongest in June (UV 10).
Minutes until sunburn in October
- Very fair skin
- about 30 min
- Fair skin
- about 40 min
- Light brown skin
- about 55 min
- Olive skin
- about 70 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen it, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Rain in Lisbon: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, Lisbon has about 9 rainy days with 75 mm of rain in total.
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 56 | 14° | 10° | 15.4° | 5.0 h | 9 | 71 |
| FebruaryFeb | 66 | 15° | 10° | 14.8° | 5.8 h | 7 | 52 |
| MarchMar | 73 | 16° | 11° | 14.9° | 6.8 h | 9 | 62 |
| AprilApr | 83 | 17° | 13° | 15.7° | 7.8 h | 9 | 52 |
| MayMay | 97 | 20° | 15° | 16.5° | 9.1 h | 6 | 38 |
| JuneJun | 100 | 22° | 17° | 17.8° | 10.4 h | 2 | 11 |
| JulyJul | 100 | 24° | 18° | 18.2° | 10.9 h | 1 | 2 |
| AugustAug | 100 | 24° | 18° | 18.6° | 10.1 h | 1 | 4 |
| SeptemberSep | 97 | 23° | 18° | 18.8° | 8.3 h | 4 | 31 |
| OctoberOct | 80 | 21° | 16° | 18.5° | 6.2 h | 9 | 75 |
| NovemberNov | 68 | 17° | 13° | 17.3° | 5.1 h | 10 | 85 |
| DecemberDec | 59 | 15° | 11° | 16.1° | 4.8 h | 10 | 83 |
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)
38.73° N, 9.15° W · 68 m · Europe/Lisbon
Best time to visit Lisbon
The best time to visit Lisbon is from May to September. The sea stays too cool for a classic beach holiday: even in September it only reaches 18.8 °C. For sightseeing, day trips and hiking, conditions are most comfortable from March to December. The wettest month is November with 85 mm of precipitation.
Lisbon through the seasons
How the weather changes over the seasons, with averages for each.
Lisbon in spring
Mar – May
Excellent
- 16–20 °C by day
- Sea 16 °C
- 8 h of sun a day
- 24 rainy days in all
Lisbon in summer
Jun – Aug
Excellent
- 22–24 °C by day
- Sea 18 °C
- 11 h of sun a day
- 4 rainy days in all
Lisbon in autumn
Sep – Nov
Excellent
- 17–23 °C by day
- Sea 18 °C
- 7 h of sun a day
- 24 rainy days in all
Lisbon in winter
Dec – Feb
Good
- 14–15 °C by day
- Sea 15 °C
- 5 h of sun a day
- 26 rainy days in all
Find your perfect month
Tell us what you like and we rate every month in Lisbon for you.
Your best months: June – August
Based on the climate averages; tap a month to see its details.
Which month for what?
Beach & swimming
No month
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
Mar – Dec
15–28 °C and not too much rain
Lisbon month by month
The typical weather for every month at a glance.
56January14° · Sea 15° · 5 h
In January, Lisbon is cool: daytime highs average 14 °C, and nights cool down to about 10 °C. The sea averages 15.4 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 71 mm in total. All in all, January is a so-so month for a holiday in Lisbon.
Lisbon in January66February15° · Sea 15° · 6 h
In February, Lisbon is cool: daytime highs average 15 °C, and nights cool down to about 10 °C. The sea averages 14.8 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain falls on about 7 days, adding up to 52 mm. All in all, February is a good month for a holiday in Lisbon.
Lisbon in February73March16° · Sea 15° · 7 h
In March, Lisbon is mild: daytime highs average 16 °C, and nights cool down to about 11 °C. The sea averages 14.9 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain is frequent, with about 9 rainy days and 62 mm in total. All in all, March is a good month for a holiday in Lisbon.
Lisbon in March83April17° · Sea 16° · 8 h
In April, Lisbon is mild: daytime highs average 17 °C, and nights cool down to about 13 °C. The sea averages 15.7 °C – swimming is only for the hardy. The sun shines for around 8 hours a day. Rain falls on about 9 days, adding up to 52 mm. All in all, April is an excellent month for a holiday in Lisbon.
Lisbon in April97May20° · Sea 17° · 9 h
In May, Lisbon is mild: daytime highs average 20 °C, and nights cool down to about 15 °C. The sea averages 16.5 °C – swimming is only for the hardy. With around 9 hours of sunshine a day, there is plenty of sun. Rain falls on about 6 days, adding up to 38 mm. All in all, May is an excellent month for a holiday in Lisbon.
Lisbon in May100June22° · Sea 18° · 10 h
In June, Lisbon is warm: daytime highs average 22 °C, and nights cool down to about 17 °C. The sea averages 17.8 °C – bracing, so a wetsuit helps for longer swims. With around 10 hours of sunshine a day, there is plenty of sun. Rain is rare: about 2 days bring 11 mm in total. All in all, June is an excellent month for a holiday in Lisbon.
Lisbon in June100July24° · Sea 18° · 11 h
In July, Lisbon is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. The sea averages 18.2 °C – bracing, so a wetsuit helps for longer swims. With around 11 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, July is an excellent month for a holiday in Lisbon.
Lisbon in July100August24° · Sea 19° · 10 h
In August, Lisbon is warm: daytime highs average 24 °C, and nights cool down to about 18 °C. The sea averages 18.6 °C – bracing, so a wetsuit helps for longer swims. With around 10 hours of sunshine a day, there is plenty of sun. It hardly ever rains. All in all, August is an excellent month for a holiday in Lisbon.
Lisbon in August97September23° · Sea 19° · 8 h
In September, Lisbon is warm: daytime highs average 23 °C, and nights cool down to about 18 °C. The sea averages 18.8 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 8 hours a day. Rain is rare: about 4 days bring 31 mm in total. All in all, September is an excellent month for a holiday in Lisbon.
Lisbon in September80October21° · Sea 19° · 6 h
In October, Lisbon is mild: daytime highs average 21 °C, and nights cool down to about 16 °C. The sea averages 18.5 °C – bracing, so a wetsuit helps for longer swims. Expect around 6 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 75 mm in total. All in all, October is an excellent month for a holiday in Lisbon.
Lisbon in October68November17° · Sea 17° · 5 h
In November, Lisbon is mild: daytime highs average 17 °C, and nights cool down to about 13 °C. The sea averages 17.3 °C – bracing, so a wetsuit helps for longer swims. Expect around 5 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 85 mm in total. All in all, November is a good month for a holiday in Lisbon.
Lisbon in November59December15° · Sea 16° · 5 h
In December, Lisbon is cool: daytime highs average 15 °C, and nights cool down to about 11 °C. The sea averages 16.1 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 83 mm in total. All in all, December is a so-so month for a holiday in Lisbon.
Lisbon in DecemberLisbon compared
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Lisbon vs. Cascais
In October the holiday weather in Lisbon and Cascais is about equally good (score 80 vs. 79). During the day Cascais is 1 °C warmer than Lisbon. The sea is about equally warm.
| in October | Lisbon | Cascais |
|---|---|---|
| Holiday score | 80 | 79 |
| Daytime high | 21° | 22° |
| Sea | 19° | 19° |
| Sunshine | 6 h | 6 h |
| Rainy days | 9 | 9 |
| Best time | May – Sep | Jun – Sep |
Through the year
Portugal in October: the best places
In October, Lisbon ranks 1 of 8 destinations in this country.
- LisbonThis page21°19°80
- 2Funchal21°23°74
- 3Porto21°17°69
- 4Portimão24°20°67
- 5Ponta Delgada21°22°66
- 6Albufeira23°20°63
- 7Lagos22°20°56
- 8Cascais22°19°44
Planning a trip to Lisbon
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Getting there
Flying from
- Nonstop flight
- about 2 h 25 min
- Distance
- 1,570 km
- Time zone
- UTC+1
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Frequently asked questions about Lisbon
When is the best time to visit Lisbon?
The best time to visit Lisbon is from May to September. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
How warm is the sea in Lisbon?
The sea temperature in Lisbon ranges from 14.8 °C in February to 18.8 °C in September. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Lisbon in October?
Only if you don't mind cold water: in October the sea averages just 18.5 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Lisbon?
August is the warmest month, with average highs of 24 °C and nights around 18 °C. January is the coolest month at 14 °C.
When does it rain most in Lisbon?
The wettest month is November with 85 mm of precipitation. The driest month is July with 2 mm.
How many hours of sunshine does Lisbon get?
Lisbon gets around 2,750 hours of sunshine a year. The sunniest month is July with 10.9 hours a day; in December there are 4.8 hours a day.
What time zone is Lisbon in?
Lisbon uses the time zone Europe/Lisbon: UTC+0 in January and UTC+1 in July.
How long is the flight from London to Lisbon?
A nonstop flight from London to Lisbon takes about 2 h 25 min, for a straight-line distance of about 1,570 km.
Near Lisbon
Other destinations close by.
Places with a climate like Lisbon
Destinations whose weather through the year is closest to Lisbon's – good alternatives.