Lisbon weather
World cities · Portugal · 38.72°N 9.14°W
Lisbon, in Portugal, has its warmest weather in July, when daytime temperatures average 29°C, while January nights are the coldest at around 8.9°C. The city sees roughly 591mm of rain a year; October is normally the wettest month and August the driest. Figures are averaged from 2020–2024 observations.
Climate averages
| Month | Avg high | Avg low | Rain | Rain days |
|---|---|---|---|---|
| Jan | 14.9° | 8.9° | 56mm | 7 |
| Feb | 16.9° | 10° | 59mm | 7 |
| Mar | 17.9° | 10.5° | 57mm | 9 |
| Apr | 20.1° | 12.2° | 61mm | 9 |
| May | 23.4° | 14.6° | 23mm | 4 |
| Jun | 24.9° | 16.3° | 23mm | 5 |
| Jul | 29° | 18.1° | 3mm | 0 |
| Aug | 28.5° | 18.4° | 1mm | 0 |
| Sep | 25.8° | 17.5° | 51mm | 7 |
| Oct | 23.2° | 15.8° | 99mm | 11 |
| Nov | 18.6° | 12.4° | 60mm | 9 |
| Dec | 16° | 10.5° | 98mm | 9 |
Seasons in Lisbon
Spring (March–May). Daytime highs in Lisbon climb from 17.9°C in March to 23.4°C by May, while nights ease from 10.5°C to 14.6°C. The season brings around 141mm of rain in total.
Summer (June–August). The warmest stretch of the year: afternoons average 27.5°C, peaking in July at 29°C. August is usually the driest of the summer months (1mm over ~0 rainy days). Around the June solstice, Lisbon gets roughly 14.7 hours of daylight.
Autumn (September–November). Daytime temperatures fall from 25.8°C in September to 18.6°C by November, and rainfall builds to its annual peak — October is the wettest month of the year (99mm).
Winter (December–February). Nights average 9.8°C, with January the coldest month (average low 8.9°C, daytime high 14.9°C). Expect about 23 days with measurable rain over the three months, and only around 9.3 hours of daylight in mid-December.
How Lisbon compares
| Lisbon | UK town average | |
|---|---|---|
| Annual rainfall | 591mm | 1054mm |
| Rainy days per year | 77 | 167 |
| Summer daytime high | 27.5°C | 19.7°C |
| Winter night low | 9.8°C | 3.4°C |
Lisbon is about 44% drier than the average for the 121 UK towns tracked on this site (1054mm), based on 2020–2024 monthly normals.
Lisbon weather FAQs
What is the warmest month in Lisbon?
July is typically the warmest month in Lisbon, with average daytime highs of 29°C. Summer afternoons (June–August) average around 27.5°C.
What is the wettest month in Lisbon?
October is usually the wettest month, with around 99mm of rain over roughly 11 rainy days. August is typically the driest (1mm).
How much does it rain in Lisbon per year?
Lisbon receives roughly 591mm of precipitation per year, spread over about 77 days with at least 1mm of rain (based on 2020–2024 observations).
How cold are winters in Lisbon?
Winter nights (December–February) in Lisbon average around 9.8°C, with January typically the coldest month (average low 8.9°C).
When is the best time to visit Lisbon for good weather?
Late spring and summer offer the most reliable weather in Lisbon. August is typically the driest of the warm months (1mm of rain), while July is the warmest, averaging 29°C by day — and near the June solstice there are around 15 hours of daylight to enjoy.
How does Lisbon's weather compare with the UK?
Lisbon receives 591mm of rain a year, about 44% drier than the average for the 121 UK towns tracked on this site (1054mm). Summer daytime highs average 27.5°C against a UK-town average of 19.7°C, and winter nights average 9.8°C versus 3.4°C.