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Porto/Pedras Rubras





Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax115810631168113811771139
Tmin116010651172113811781137
Duration of sunshine184161175161182169
Precipitation186169189181186180
Humidity/Visibility185167184178185178


ParameterJulAugSepOctNovDec
Tmax117611751165120211681211
Tmin117811791169120411591207
Duration of sunshine176172199188172213
Precipitation186189210215210217
Humidity/Visibility184185205208181214


Climate data is usually derived from meteorological data of a certain number of years. The actual number of recorded years may vary from only a couple to 50 years or more. The quality of climate data depends on the number of available recorded years. Fewer years means less reliable data. The standart-period for reliable climate data is 30 years. For example, the mean monthly temperature for, let's say January, would ideally calculated from a total number of 930 recorded January-days. However, the usual number of recorded days is much smaller. The table above shows the actual number of recorded days for every parameter measured.

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