Climate Chart of Harbor, Portugal
Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023
For Harbor, Portugal, the climate data cover 2013–2023. Monthly mean temperatures range from January at 9.7 °C to July at 20.5 °C, while the unweighted mean across monthly means is 15.1 °C. The monthly daily rainfall means also vary, from August at 0.46 mm/day to October at 5.94 mm/day. Together, these figures offer a useful overview, while remaining averages rather than a forecast for any particular day.
Climate overview
Temperature
The temperature figures describe monthly means, not daytime highs, so they indicate the broad monthly pattern rather than the warmest conditions visitors might experience during a day. The coolest monthly mean occurs in January, at 9.7 °C; the warmest occurs in July, at 20.5 °C. Across the calendar months, the unweighted mean of those monthly means is 15.1 °C, a compact summary that does not give equal weight to every day of the year.
Rain
Rainfall is reported as a mean daily amount, not a monthly total or a measure of how often rain falls. The lowest monthly daily mean is August at 0.46 mm/day, while the highest is October at 5.94 mm/day. The unweighted mean across the monthly daily means is 3.70 mm/day; these averages describe typical amounts but cannot establish whether rain will occur on a particular day.
Sunshine
Mean daily sunshine duration is highest in July, at 12.84 hours/day, and lowest in December, at 5.95 hours/day. The unweighted mean of the monthly sunshine means is 9.30 hours/day. These are average sunshine hours, not measures of daylight length, and actual sunshine can differ from the monthly averages.
Snow
The highest monthly mean daily snowfall is recorded in January, at 0.01 mm/day. This small recorded mean does not indicate how many days receive snow, snow depth or snow cover, and it cannot establish skiing conditions.
Best Travel Time Guide for Harbor, Portugal: Ideal Seasons and Weather Insights
For visitors prioritising lower average rainfall, August is the conditional option: its mean daily rainfall is 0.46 mm/day. That average does not guarantee dry days or show how frequently rain occurs, so it is still sensible to check forecasts and pack for changeable weather. Rain preparation is particularly relevant in October, when the mean daily amount reaches 5.94 mm/day; neither figure is a monthly rainfall total. If cooler monthly mean temperatures are a priority, consider January, whose mean is 9.7 °C; this is not a daytime maximum and cannot describe the temperature on every visit. For outdoor sightseeing planned around sunshine, July has the highest mean daily sunshine duration at 12.84 hours/day, while December has the lowest at 5.95 hours/day. Sunshine duration is not day length, and these separate criteria do not establish one universally best time to visit.
Climate Data Overview for Harbor, Portugal
Explore the comprehensive climate data for Harbor, 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 | 9.7 | 5.45 | 0.01 | 6.01 |
| Feb | 10.4 | 4.50 | 0.00 | 7.50 |
| Mar | 11.7 | 4.89 | 0.00 | 8.61 |
| Apr | 13.6 | 4.32 | 0.00 | 10.25 |
| May | 16.2 | 2.64 | 0.00 | 11.51 |
| Jun | 18.2 | 1.52 | 0.00 | 12.40 |
| Jul | 20.5 | 0.48 | 0.00 | 12.84 |
| Aug | 20.4 | 0.46 | 0.00 | 11.81 |
| Sep | 19.4 | 2.50 | 0.00 | 10.35 |
| Oct | 16.9 | 5.94 | 0.00 | 7.86 |
| Nov | 12.8 | 5.89 | 0.00 | 6.54 |
| Dec | 11.0 | 5.86 | 0.00 | 5.95 |
| Average | 15.1 | 3.70 | 0.00 | 9.30 |
