Weather Averages Viana Do Castelo, Portugal

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Weather Averages for
Viana Do Castelo, Portugal


Latitude: 41°42'N, Longitude: 8°48'W, Elevation: 59.0 ft, Distance: 0.00 mi

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 20 years
°F 59 48 51 53 55 60 64 69 68 66 60 55 51
Average high temperature
over 20 years
°F 66 55 57 60 62 66 73 77 77 75 66 60 57
Average low temperature
over 20 years
°F 51 42 44 46 48 51 57 60 59 57 53 48 44
Highest recorded temperature
over 20 years
°F 100 77 75 82 86 93 100 100 100 100 91 75 75
Lowest recorded temperature
over 20 years
°F 26 26 28 32 32 35 41 48 46 39 34 30 26
Average number of days above 90°F
over 20 years
days 8 - - - - - 1 3 2 2 - - -
Average precipitation
over 30 years
in 54.0 7.6 6.9 4.2 4.5 3.2 2.0 0.6 0.7 3.4 6.0 6.8 7.9
Average dew point
over 17 years
°F 51 43 44 46 46 51 55 59 59 57 53 48 46
Most recorded rainfall
over 30 years
in 71.4 17.0 14.1 13.6 11.3 8.7 3.9 2.5 2.1 13.1 19.0 15.5 20.7
Least recorded rainfall
over 30 years
in 33.7 0.9 1.3 0.1 0.8 0.4 - - - - 0.3 - 0.4
Average number of days with thunderstorms
over 18 years
days 11 1 1 1 1 1 1 1 - 1 1 1 1
Average number of days with fog
over 18 years
days 281 24 20 22 20 24 24 26 26 24 24 23 24
Average morning relative humidity
over 19 years
% 90 91 89 88 86 88 89 90 91 91 91 92 89
Average evening relative humidity
over 15 years
% 64 69 69 64 62 62 62 60 59 60 66 70 71
Average wind speed
over 17 years
mph 5.0 3.0 4.0 6.0 4.0 6.0 6.0 5.0 6.0 5.0 4.0 3.0 3.0
Average number of days below 32°F
over 20 years
days 9 4 1 - - - - - - - - - 3
Average number of days above 65°F
over 20 years
days 179 1 2 7 11 16 25 30 31 28 18 8 2