Lisbon, Portugal: Annual Weather Averages
July is the hottest month in Lisbon with an average temperature of 23.5°C (74°F) and the coldest is January at 11°C (52°F) with the most daily sunshine hours at 11 in July. The wettest month is November with an average of 127.6mm of rain. The best month to swim in the sea is in September when the average sea temperature is 19.9°C (68°F).
Average Temperature: Lisbon
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 11 | 12 | 14 | 15 | 18 | 21 | 24 | 23 | 23 | 19 | 14 | 12 |
| °F | 52 | 54 | 57 | 58 | 64 | 69 | 74 | 73 | 73 | 65 | 57 | 53 |
Average High/Low Temperature: Lisbon
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 15 | 16 | 19 | 20 | 22 | 26 | 28 | 28 | 27 | 23 | 18 | 15 |
| Low °C | 8 | 9 | 11 | 12 | 14 | 17 | 18 | 19 | 18 | 15 | 12 | 9 |
| High °F | 59 | 61 | 66 | 68 | 72 | 78 | 82 | 83 | 80 | 73 | 65 | 60 |
| Low °F | 47 | 48 | 52 | 53 | 57 | 62 | 65 | 65 | 64 | 59 | 53 | 49 |
Average Day/Night Temperature: Lisbon
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day °C | 12 | 12 | 13 | 15 | 18 | 21 | 22 | 23 | 22 | 19 | 15 | 12 |
| Night °C | 11 | 11 | 13 | 14 | 17 | 19 | 20 | 22 | 21 | 18 | 14 | 11 |
| Day °F | 53 | 53 | 56 | 59 | 65 | 70 | 72 | 74 | 71 | 66 | 58 | 53 |
| Night °F | 52 | 52 | 55 | 58 | 62 | 66 | 68 | 71 | 70 | 65 | 57 | 52 |
Average Rainfall: Lisbon
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 100 | 85 | 53 | 68 | 54 | 16 | 4 | 6 | 33 | 101 | 128 | 127 |
| Days | 15 | 15 | 13 | 12 | 8 | 5 | 2 | 2 | 6 | 11 | 14 | 14 |
Average Daily Sunshine Hours: Lisbon
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hours | 5 | 7 | 7 | 8 | 9 | 10 | 11 | 10 | 8 | 6 | 5 | 4 |
Average Sea Temperature: Lisbon
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| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 16 | 15 | 15 | 16 | 17 | 19 | 19 | 20 | 20 | 20 | 18 | 17 |
| °F | 60 | 59 | 59 | 61 | 63 | 65 | 66 | 67 | 68 | 68 | 65 | 62 |
