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According to May weather statistics, 2 of 4 regions of Portugal have the dry season. These regions are Madeira, Algarve. There are 3 of 4 regions in Portugal, which, according to May weather, belong to the tourist season. These are Madeira, Azores, Central Portugal.
The lowest day temperature in Portugal in May can be found in Azores, where the value of day temperature is 18 °C (64 °F). The highest value of the day temperature in Portugal in May can be seen in Algarve with a value of 22 °C (72 °F).
The night temperature in Portugal in May is the lowest in Azores - its value is 12 °C (54 °F). In May in Portugal - the region with the highest night temperature is Madeira. The value in this region is 14 °C (57 °F).
The lowest sea temperature in May in Portugal can be found in Central Portugal, where the value of sea temperature is 16 °C (61 °F). In Portugal in May - the region with the highest sea temperature is Madeira. The value in this region is 19 °C (66 °F).
In May in Portugal - the region with the lowest number of rainy days is Madeira. The value in this region is 3 days. The number of rainy days in May in Portugal is the highest in Azores - its value is 9 days.
In Portugal in May - the region with the lowest rainfall amount is Algarve. The value in this region is 23 mm (0.92 in). The highest value of the rainfall amount in Portugal in May can be seen in Azores with a value of 88 mm (3.47 in).
In Portugal in May - the region with the lowest wind speed is Central Portugal. The value in this region is 4. The wind speed in Portugal in May is the highest in Madeira - its value is 5.
The lowest value of the humidity in Portugal in May can be seen in Algarve with a value of 66 %. In Portugal in May - the region with the highest humidity is Azores. The value in this region is 80 %.
The number of sun hours (without clouds) in May in Portugal is the lowest in Azores - its value is 6 hours. The number of sun hours (without clouds) in Portugal in May is the highest in Algarve - its value is 10 hours.
In May in Portugal - the region with the lowest clear sky percentage is Azores. The value in this region is 41 %. The highest clear sky percentage in May in Portugal can be found in Algarve, where the value of clear sky percentage is 70 %.
The lowest value of the day length in May in Portugal can be seen in Madeira with a value of 14 hours. In Portugal in May - the region with the highest day length is Central Portugal. The value in this region is 14 hours.