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Weather extremes
How extreme does Viana do Castelo's weather get?
The hottest, coldest, wettest and snowiest days Viana do Castelo has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.
The four kinds of extreme
The hottest, coldest, wettest and snowiest single days Viana do Castelo has recorded — each shown against what a normal day that time of year looks like.
That is about 29°F hotter than a normal June afternoon in Viana do Castelo (typical high near 73°F).
The three most extreme on record
About 18°F colder than a normal March night in Viana do Castelo (typical low near 47°F).
The three most extreme on record
More rain in a single day than Viana do Castelo usually gets in the whole month of March (typical March total about 4.1 in).
The three most extreme on record
How hot and cold it gets, month by month
The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.
Viana do Castelo's record heat sits well above even a hot day for the season — June's 102°F is about 29°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.
In plain terms
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Porto, a weather station, about 51 km from the city centre. The underlying daily records come from NOAA's global station network.