Average Temperatures in Lisbon, Portugal
- The average annual temperature in Lisbon, Portugal is very mild at 16.8 degrees Celsius (62.2 degrees Fahrenheit).
- The variation of average monthly temperatures is 11.4 °C (20.5°F) which is a low range.
- There is a range/ variation of mean diurnal temperatures of 8 °C (14.5 °F).
- The hottest month (August) is really warm with an average temperature of 22.8 degrees Celsius (73.04 degrees Fahrenheit).
- January is the coldest month (quite mild) with an average temperature of 11.4 degrees Celsius (52.52 degrees Fahrenheit).
- The average sea temperature is 15 °C (59 °F).
Average Temperatures Table for Lisbon
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Average Max Temperature °C ( °F) | 14.5 (58.1) | 15.6 (60.1) | 17.6 (63.7) | 19.1 (66.4) | 21.7 (71.1) | 24.8 (76.6) | 27.4 (81.3) | 27.9 (82.2) | 26.4 (79.5) | 22.4 (72.3) | 17.8 (64) | 14.8 (58.6) | 20.8 (69.5) | |
 | Average Temperature °C ( °F) | 11.4 (52.5) | 12.3 (54.1) | 13.7 (56.7) | 15.1 (59.2) | 17.4 (63.3) | 20.2 (68.4) | 22.4 (72.3) | 22.8 (73) | 21.7 (71.1) | 18.5 (65.3) | 14.5 (58.1) | 11.8 (53.2) | 16.8 (62.2) | |
 | Average Min Temperature °C ( °F) | 8.2 (46.8) | 9 (48.2) | 9.9 (49.8) | 11.1 (52) | 13 (55.4) | 15.6 (60.1) | 17.4 (63.3) | 17.7 (63.9) | 17 (62.6) | 14.6 (58.3) | 11.2 (52.2) | 8.9 (48) | 12.8 (55) | |
| Average Sea or Water Temp °C ( °F) | 13 (55) | 13 (55) | 14 (57) | 14 (57) | 15 (59) | 16 (61) | 16 (61) | 16 (61) | 17 (63) | 17 (63) | 15 (59) | 14 (57) | 15 (59) |
Lisbon Average Temperatures Chart
The average temperature charts use a fixed scale so that you can easily compare temperatures between two or more locations. Simply line up the charts in separate tabs in your browser and toggle between tabs to visualise the differences. The charts have major grid lines at intervals of 10 °C on the left axis corresponding with intervals of 18 °F on the right axis. Minor gridlines mark intervals of 2.5 °C and 4.5 °F. The charts show the relationship between the Celsius and Fahrenheit measuring scales. Locations in the northern hemisphere run from January to December and in the southern hemisphere from July to June so that the middle of the chart always corresponds with the high sun period (for the hemisphere).
