Portugal · 41.15°N 8.61°W · 30-year monthly averages, judged against the Warm preset (highs 19–28 °C66–82 °F, dry or showers)
The best time to visit Porto is May to September, with highs of 20–25 °C68–77 °F and nights of 11–15 °C52–59 °F, and rainfall of 16–88 mm0.6–3.5 in a month.
The rainy season is October to April; December to February is a true monsoon, with 168–176 mm6.6–6.9 in a month and a peak in January (176 mm6.9 in). July is the hottest month (highs of 25 °C77 °F) and January the coldest (14 °C57 °F).
The figures are 30-year monthly averages (WorldClim 2.1 monthly normals 1970–2000) for the 0.25° grid cell at 41.15, -8.61. This is a climate guide, not a forecast.
Pick the weather you like. Every month is then judged against it: temperature above the month names, rain below.
Good time to go for a Warm holiday: May to September.
Open Porto on the interactive map ↗ the same verdicts for any place on Earth, in any month
Reading the chart. Gold means good: the month fits what you picked. Any other colour shows the reason it does not. The temperature bar can be too cold or too hot; the rain bar can be too dry, too rainy or monsoon. A faded gold bar means that half fits but the other half does not. A gold month name means both halves fit.
What the verdicts mean. Temperature is the month's average daily high (the afternoon), judged against the preset's band (highs 19–28 °C66–82 °F for Warm). Rain is judged by each month's class within Porto's own year, not by raw millimetres: dry under 60 mm2.4 in, showers 60–100 mm2.4–3.9 in, rainy from 100 mm3.9 in and at least 35 % of the wettest month. Too rainy is a rainy-season month that the preset does not allow. Monsoon is the heaviest kind of rainy season: 180 mm7.1 in or more (120 mm4.7 in near the yearly peak) in a climate where the wettest month has at least three times the rain of the driest. Every monsoon month is also a rainy-season month; the label says which kind. Full rules on the method page.
| Month | Rain | High | Low | Season | Warm verdict |
|---|---|---|---|---|---|
| January | 1766.9 | 1456 | 642 | monsoon | too cold |
| February | 1686.6 | 1558 | 643 | monsoon | too cold |
| March | 1285.0 | 1762 | 745 | rainy | too cold |
| April | 1044.1 | 1864 | 947 | rainy | too cold |
| May | 883.5 | 2067 | 1152 | showers | good |
| June | 562.2 | 2373 | 1456 | dry | good |
| July | 160.6 | 2576 | 1559 | dry | good |
| August | 160.6 | 2576 | 1558 | dry | good |
| September | 562.2 | 2373 | 1456 | dry | good |
| October | 1285.0 | 2068 | 1253 | rainy | too rainy |
| November | 1365.4 | 1762 | 947 | rainy | too cold |
| December | 1766.9 | 1457 | 744 | monsoon | too cold |
| Looking for | Rule | Months that fit |
|---|---|---|
| Warm | highs 19–28 °C66–82 °F, dry or showers | May to September |
| Tropical | highs 28–38 °C82–100 °F, any rain except monsoon | |
| Beach | highs 28–38 °C82–100 °F, dry or showers | |
| Cool | highs 3–19 °C37–66 °F, any rain except monsoon | March to April and November |
| Snow | highs below 3 °C37 °F, any rain |
Yes. The rainy season is October to April; December to February is a true monsoon, with 168–176 mm6.6–6.9 in a month and a peak in January (176 mm6.9 in). Outside the rainy season, June to September is dry.
July is the hottest month (highs of 25 °C77 °F) and January the coldest (14 °C57 °F). Annual rainfall is about 1,248 mm49 in.
The nearest destinations that fit the Warm preset in the months when Porto does not:
The interactive map colours the whole world by how well it fits the weather you like, in any month, and shows this chart for any place you tap.