Portugal · 41.15°N 8.61°W · monthly climate normals, judged against the Warm preset (mean 14–24 °C57–75 °F, dry or showers)
The best time to visit Porto is May to September, when mean temperatures run from 15 °C59 °F to 20 °C68 °F and rainfall runs 16–88 mm0.6–3.5 in a month.
The rainy season runs October to April, and December to February is a true monsoon — 168–176 mm6.6–6.9 in a month, peaking in January at 176 mm6.9 in. July is the hottest month at 20 °C68 °F and January the coldest at 10 °C50 °F.
Figures are 30-year monthly averages (WorldClim 2.1 monthly normals 1970–2000) for the 0.25° grid cell at 41.15, -8.61 — a climate guide, not a forecast.
Pick the weather you like and every month is 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 verdict for every place on Earth, any month
Reading the chart. Gold is good: the month fits what you picked. Any other colour names the reason it doesn't — the temperature bar can be too cold or too hot, the rain bar too dry, too rainy or monsoon. A faded gold bar is a half that fits while the other half fails; a gold month name means both fit.
What the verdicts mean. Temperature is the monthly mean, judged against the preset's band (mean 14–24 °C57–75 °F for Warm). Rain is judged by each month's class within Porto's own year rather than raw millimetres: dry under 60 mm2.4 in, showers 60–100 mm2.4–3.9 in, rainy from 100 mm3.9 in and 35 % of the wettest month. Too rainy is a rainy-season month the preset doesn't 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 whose wettest month is at least three times its driest — so every monsoon month is rainy season too; the label says which kind. Full rules on the method page.
| Month | Rain | Mean | Season | Warm verdict |
|---|---|---|---|---|
| January | 1766.9 | 1049 | monsoon | too cold |
| February | 1686.6 | 1151 | monsoon | too cold |
| March | 1285.0 | 1254 | rainy | too cold |
| April | 1044.1 | 1355 | rainy | too cold |
| May | 883.5 | 1559 | showers | good |
| June | 562.2 | 1864 | dry | good |
| July | 160.6 | 2067 | dry | good |
| August | 160.6 | 2067 | dry | good |
| September | 562.2 | 1965 | dry | good |
| October | 1285.0 | 1660 | rainy | too rainy |
| November | 1365.4 | 1355 | rainy | too cold |
| December | 1766.9 | 1151 | monsoon | too cold |
| Looking for | Rule | Months that fit |
|---|---|---|
| Warm | mean 14–24 °C57–75 °F, dry or showers | May to September |
| Tropical | mean 24–33 °C75–91 °F, anything but the monsoon | |
| Beach | mean 24–33 °C75–91 °F, dry or showers | |
| Cool | mean 0–14 °C32–57 °F, anything but the monsoon | March to April and November |
| Snow | mean below 0 °C32 °F, any rain |
Yes. The rainy season runs October to April, and December to February is a true monsoon — 168–176 mm6.6–6.9 in a month, peaking in January at 176 mm6.9 in. Outside it, June to September is dry.
July is the hottest month at 20 °C68 °F and January the coldest at 10 °C50 °F. Annual rainfall totals about 1,248 mm49 in.
The nearest destinations that do fit the Warm preset in the months Porto doesn't:
The interactive map colours the whole world by how it fits your picks in any month, and shows this chart for any place you tap.