United StatesAverage weather for Alameda in September
It's warm in September in Alameda with an average temperature of 25°C. Temperatures this month range from a low of 22°C to a high of 28°C. At night, you can expect temperatures between 13°C and 17°C.
Start of September
The month of September starts in Alameda with warm temps, averaging around 26°C during the day and nights around 16°C. No precipitation expected at the start of the month; it’ll be sunny.
With the temperature difference between day and night, it’s smart to wear layers.
Mid September
By mid-September, daytime temps drop to around 24°C, with nights around 16°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of September
By the end of September, the average daytime temperature in Alameda is around 25°C, while nighttime temps are about 15°C. No precipitation expected at the end of the month; it’ll be mostly sunny.
According to weather history, there is only 3,3 mm of precipitation in September. The wind speed is around 4 Bft, mostly coming from the West.
Alameda in September |
New York | ||
|---|---|---|---|
 Average temperature |
25°C | 27°C | |
 Max. temperature |
28°C | 31°C | |
| Min. temperature |
22°C | -5°C | |
 Total precipitation |
3,3 mm | 57 mm | |
| Rainy days |
1 day | 9 days | |
August
UV index
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is September a good time to visit Alameda?
Looking for great weather? September is a good time to be in Alameda. The temperatures are nice, and there’s not too much rain.
Temperature records
With 39°C in 2020, Alameda reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 17°C in 2016. The extreme nighttime temperatures ranged from a lowest recorded value of 9°C to a highest value of 21°C.
Check out the climate of Alameda for all months and discover the best travel time
Daily Temperature in September in Alameda
This chart shows the average daily high and low temperatures in September for Alameda, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Alameda
The chart below shows the average daily precipitation in September for Alameda, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 1 day of precipitation in Alameda.
Daily UV index in September in Alameda
This chart shows the average daily UV index in September in Alameda, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Alameda over the years
This chart shows the average temperature in September in Alameda, measured in degrees Celsius, over the past few years.
Total precipitation in September in Alameda over the years
This chart shows the average precipitation in September in Alameda, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in September for Alameda
Click on any day in September to get detailed info about the usual weather on that day in Alameda. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Alameda
Have you been to Alameda in September?
Share your weather experience in September in Alameda.
Average weather in Alameda by month
Click on a month below to see detailed weather info for Alameda. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
