Hayward weather in September (California, United States of America)
Planning a trip to Hayward in September? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.
In Hayward the weather in September is generally perfect, characterized by high temperatures and almost no rainfall. September falls within the summer season. Daytime temperatures hover around 25°C, while nights can cool down to about 13°C. Often, it stands out as the year's warmest month. With this in mind, cool breathable fabrics will make navigating the heat much more bearable. Always be ready to embrace the warmth while staying cool and protected.
Hayward in September usually receives almost no rainfall, averaging around 4.2 mm for the month. When we look at the climate data from the last 30 years, we can expect around 1 day of rain.
The city usually sees around 270 hours of sunlight, indicating many sunny days.
So this is a great month to visit if you prefer dry days with pleasant temperatures. May, June, July, August, September and October typically offer the most optimal weather. In contrast, December tends to have less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Hayward climate page with graphs.
Hayward, monthly averages in September
Min Temperature
13°C
Max Temperature
25°C
Chance of Rain
3%
Precipitation
4.2 mm
Rainy days
1 day
Humidity
73% *
Sunshine
270 hours *
Percentage Sunshine
73% *
Where to go in the United States of America in September
Find out more about the weather in the United States of America in September and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Hayward in September?
It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in September.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Hayward.
Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.
