St. Helena weather in September (California, United States of America)
Wondering what the weather is like in St. Helena during September? Explore our page to find a thorough overview of this month's weather conditions.
Temperatures
Experience perfect weather in St. Helena in September, characterized by very high temperatures and almost no rainfall. September is typically considered a summer month. During the day, temperatures can climb to about 31°C. At night, they may fall to a cooler 12°C. These temperatures represent the average, but hotter days can occur. Be prepared with light clothing and stay hydrated to manage the heat.
Precipitation
St. Helena in September usually receives almost no rainfall, averaging around 4.2 mm for the month. Historically, the month has about 2 days of rain.Average sunshine
There are approximately 275 hours of sunshine this month, meaning plenty of sunny days and a vibrant atmosphere.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit. April, May, June, July, August, September and October generally stand out with the best circumstances. While January, February and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized St. Helena climate page with graphs.
St. Helena, monthly averages in September
Min Temperature
12°C
Max Temperature
31°C
Chance of Rain
6%
Precipitation
4.2 mm
Rainy days
2 days
Sunshine
275 hours *
Percentage Sunshine
77% *
Where to go in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in this month?
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.
Interested in more climate information?
This site provides you with all the information you need about the climate in St. Helena.
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 travel conditions. Find out where to go with our weather planner.
