Climate Chart of Lisbon, Portugal
Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023
For Lisbon, Portugal, the climate data describe 2013–2023. The annual pattern spans from a coolest monthly mean of 11.5 °C in January to a warmest monthly mean of 22.4 °C in August. Rainfall's lowest monthly daily mean is 0.04 mm/day in August, while its highest is 2.62 mm/day in November. These monthly averages sketch broad differences through the year, but do not describe the weather on any particular day.
Climate overview
Temperature
Monthly mean temperatures reach their high of 22.4 °C in August, and their low of 11.5 °C in January. These are averages for each month, not daytime highs or a promise that every day will feel similar. The unweighted mean across the monthly means is 16.8 °C; it summarizes the calendar-month averages without weighting them by the number of days in each month.
Rain
Mean daily rainfall is lowest at 0.04 mm/day in August, and highest at 2.62 mm/day in November. The unweighted mean across monthly daily means is 1.54 mm/day. These figures describe average daily amounts, not monthly totals; by themselves, they do not show how often rain falls or guarantee dry or wet weather on a particular visit.
Sunshine
Average daily sunshine reaches its highest level, 12.88 hours/day, in July, and its lowest, 6.99 hours/day, in December. The unweighted mean across the monthly means is 9.89 hours/day per day. These averages can help set expectations for outdoor planning, but sunshine duration is not the same as day length and does not specify conditions on an individual day.
Best Travel Time Guide for Lisbon, Portugal: Ideal Seasons and Weather Insights
For visitors prioritising lower average rainfall, August is the conditional option in this record, with mean daily rainfall of 0.04 mm/day; this does not guarantee rain-free days or indicate how frequently showers occur. If travelling in November, when the mean daily amount is 2.62 mm/day, consider packing rain protection, while remembering that a monthly average cannot predict the weather for your dates. Visitors prioritising cooler monthly mean temperatures can consider January, the coolest month at 11.5 °C. For outdoor sightseeing planned around average sunshine, July has the highest mean daily sunshine at 12.88 hours/day, while December has the lowest at 6.99 hours/day. These are separate planning criteria rather than a combined best-time ranking, and the averages do not establish conditions on a specific day.
Climate Data Overview for Lisbon, Portugal
Explore the comprehensive climate data for Lisbon, Portugal. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.
| Month | Average: Temperature °C | Rain (mm) / day | Snow (mm) / day | Sunshine (h) / day |
|---|---|---|---|---|
| Jan | 11.5 | 1.70 | 0.00 | 7.01 |
| Feb | 11.9 | 1.85 | 0.00 | 8.11 |
| Mar | 13.3 | 2.09 | 0.00 | 9.40 |
| Apr | 15.1 | 2.08 | 0.00 | 10.70 |
| May | 17.9 | 1.20 | 0.00 | 12.14 |
| Jun | 20.0 | 0.43 | 0.00 | 12.84 |
| Jul | 22.1 | 0.07 | 0.00 | 12.88 |
| Aug | 22.4 | 0.04 | 0.00 | 12.13 |
| Sep | 21.1 | 1.45 | 0.00 | 10.63 |
| Oct | 18.9 | 2.42 | 0.00 | 8.57 |
| Nov | 14.7 | 2.62 | 0.00 | 7.27 |
| Dec | 12.7 | 2.51 | 0.00 | 6.99 |
| Average | 16.8 | 1.54 | 0.00 | 9.89 |
