Regions being in the rainy season in Mexico in September are the following: Mexico - West coast, Mexico - Southwest coast, Central Mexico. This is 3 of 6 regions in Mexico. 5 of 6 regions have the tourist season in September in Mexico. These regions are Yucatan, California Bay, Mexico - West coast, Mexico - Southwest coast, Oaxaca.

The lowest value of the day temperature in Mexico in September can be seen in Central Mexico with a value of 25.6 °C (78.1 °F). The highest value of the day temperature in Mexico in September can be seen in California Bay with a value of 34.8 °C (94.6 °F).

The lowest value of the night temperature in September in Mexico can be seen in Central Mexico with a value of 13.1 °C (55.6 °F). In September in Mexico - the region with the highest night temperature is California Bay. The value in this region is 24.6 °C (76.2 °F).

The sea temperature in September in Mexico is the lowest in Yucatan - its value is 28.7 °C (83.7 °F). The sea temperature in Mexico in September is the highest in Mexico - West coast - its value is 29.6 °C (85.2 °F).

In Mexico in September - the region with the lowest number of rainy days is California Bay. The value in this region is 4 days. In September in Mexico - the region with the highest number of rainy days is Mexico - West coast. The value in this region is 16 days.

The rainfall amount in September in Mexico is the lowest in California Bay - its value is 74 mm (2.92 in). The highest value of the rainfall amount in September in Mexico can be seen in Mexico - Southwest coast with a value of 287 mm (11.31 in).

The lowest wind speed in Mexico in September can be found in Central Mexico, where the value of wind speed is 1.8. The highest wind speed in September in Mexico can be found in Oaxaca, where the value of wind speed is 3.4.

The humidity in Mexico in September is the lowest in California Bay - its value is 68 %. In September in Mexico - the region with the highest humidity is Yucatan. The value in this region is 84 %.

The lowest value of the number of sun hours (without clouds) in September in Mexico can be seen in Oaxaca with a value of 5 hours. The highest number of sun hours (without clouds) in Mexico in September can be found in California Bay, where the value of number of sun hours (without clouds) is 7 hours.

In Mexico in September - the region with the lowest clear sky percentage is Oaxaca. The value in this region is 43 %. The highest value of the clear sky percentage in Mexico in September can be seen in California Bay with a value of 59 %.

The lowest value of the day length in September in Mexico can be seen in Oaxaca with a value of 12 hours. The day length in Mexico in September is the highest in California Bay - its value is 12 hours.