Arroyo Seco Weather & Climate: Best Time to Visit

In Arroyo Seco, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 32°C (90°F) in January to a moderate 17°C (63°F) in July.

Nighttime temperatures range from 19°C (66°F) in January to 6°C (43°F) in July.

Check out our detailed temperature page for more information.

Temperature ranges by month

Arroyo Seco experiences significant rainfall throughout the year, averaging 1096 mm (43 in) of precipitation annually. The seasons in Arroyo Seco bring significant changes in precipitation. The wettest month, February, receives high rainfall, with an average of 127 mm (5 in) of precipitation. This rainfall is distributed across 8 rainy days.

In contrast, the driest month, July, experiences much less rainfall, totaling 41 mm (1.6 in) over 5 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Arroyo Seco Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

In Arroyo Seco, summer days are longer and more sunny, with daily sunshine hours peaking at 9.8 hours in January. As the darker season arrives, the brightness of the sun becomes less. June sees a soft sun for only 4.7 hours per average day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Arroyo Seco.

The city experiences its highest humidity in May, reaching 82%. In December, the humidity drops to its lowest level at 68%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year