Temperature
Warm by day, mild at night.
84°Ftypical August high
Typical range
August climate
August in Lisbon
Portugal · Europe
Warm summer days give way to milder nights. Rain is rare, averaging about one wet day in August.
Good overall
Some afternoons can feel hot.
Daytime high
84°F
Lows around 66°F
Rain
Very little rain
Sun
12.5 h/day
Air feel
Comfortable
Sea temp
70°F
Cool water for swimming
When to visit
Month-by-month fit
Best
Precipitation
Mostly dry. About 1 wet day, the lowest monthly average.
3%wet-day frequency
AmountWet-day chance
Sunshine
Plenty of sun this month.
12.6 hAugust sunshine
Heat & humidity by month
Warm days with mostly dry air.
LowAugust Heat feel
Easy airWarm airHot airHumid air
Hourly temperature pattern
In August, afternoons feel about 80° and nights feel near 64°.
Very coldColdCoolComfortableWarmNight hours
Clear sky
Mostly clear skies this month.
74%August Clear sky
Clear skyCloud
Wind pattern
August's typical breeze keeps warmer afternoons from feeling as still.
11 mphAugust Breezy
Sea temperature
70°FAugust sea temp
More detailIncludes daypart comfort
Typical August day
August late afternoons are around 83°F, easing to about 76°F in early evening.
Avg temp Typical range
Morning72°F
Rain2%
Cloud34%
Humid airLow
Sun intensityLow
Midday81°F
Rain2%
Cloud22%
Humid airLow
Sun intensityStrong
Late afternoon83°F
Rain2%
Cloud17%
Humid airLow
Sun intensityStrong
Early evening76°F
Rain1%
Cloud17%
Humid airLow
Sun intensityLow
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 57 | 47 | 2.8 | 9 | 7.7 | 83 | 61 |
| Feb | 60 | 48 | 2.1 | 8 | 8.8 | 78 | 60 |
| Mar | 64 | 51 | 2.4 | 9 | 10.1 | 75 | 60 |
| Apr | 67 | 54 | 2.1 | 9 | 11.5 | 72 | 62 |
| May | 73 | 58 | 1.5 | 5 | 12.4 | 67 | 64 |
| Jun | 78 | 62 | 0.4 | 2 | 13.6 | 67 | 67 |
| Jul | 82 | 65 | 0.1 | 1 | 13.5 | 65 | 69 |
| Aug | 84 | 66 | 0.1 | 1 | 12.6 | 64 | 70 |
| Sep | 79 | 64 | 1.2 | 4 | 11.1 | 68 | 70 |
| Oct | 73 | 60 | 2.9 | 9 | 9.3 | 75 | 69 |
| Nov | 63 | 53 | 3.3 | 10 | 7.8 | 81 | 66 |
| Dec | 58 | 49 | 3.3 | 9 | 7.2 | 85 | 63 |
Similar climates
Similar
Similar travel styleBarcelonaSpainSimilar travel stylePortoPortugalSimilar travel styleCataniaItalySimilar travel styleIstanbulTurkey
Want a side-by-side climate view? Compare Lisbon with Barcelona.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology