Temperatures in September
It's hot in September in Loma Prieta with an average temperature of 31°C. Temperatures this month range from a low of 30°C to a high of 32°C. At night, you can expect temperatures between 22°C and 23°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for Loma Prieta in September. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of September
The month of September starts in Loma Prieta with hot temperatures, averaging around 31°C during the day and nights close to 23°C. Plenty of days with a chance of precipitation.
Mid-September
By mid-September, the average daytime temperature stays the same at 31°C, with nights close to 23°C. The chance of precipitation is high during this period.
End of September
By the end of September, the average daytime temperature in Loma Prieta will be around 31°C, with nights close to 23°C. There’s a significant chance of many days with precipitation.
Precipitation in September
In September, there is an average of 379 mm of precipitation, spread over 28 days. The wind speed is around 3 Bft, mostly coming from the Southwest.
The average precipitation chance this month is over 94%, so expect nearly daily rain in September.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in September for Loma Prieta. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
Loma Prieta in September |
London | ||
|---|---|---|---|
 Average Temperature |
31°C | 20°C | |
 High Temp |
32°C | 22°C | |
| Low Temp |
30°C | 17°C | |
 Total Precipitation |
379 mm | 44 mm | |
| Rainy Days |
28 days | 8 days | |
August
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is September a good time to visit Loma Prieta?
After some sun? Then September isn’t the best time to be in Loma Prieta. The temperature is pleasant, but there’s too much chance of rain this month.
The hurricane season in Loma Prieta runs from June to November.
Temperature records for Loma Prieta in September
With 36°C, Loma Prieta hit the highest temperature in the last 10 years in September 2015. The lowest daytime temperature in this month was 25°C in 2019. The extreme night temperatures ranged from a low of 13°C to a high of 28°C.
Check out the climate of Loma Prieta for all months and discover the best travel time
Daily Temperature in September in Loma Prieta
This chart shows the average daily temperatures, both day and night, for each day in September in Loma Prieta, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in September in Loma Prieta
The chart below shows the average daily precipitation in September for Loma Prieta, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown 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 rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for September, you can expect around 28 days of rain in Loma Prieta.
Daily UV Index in September in Loma Prieta
This chart shows the average daily UV index in September in Loma Prieta, 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 Loma Prieta Over the Years
This chart shows the average temperature in September in Loma Prieta, measured in degrees Celsius, over the past years.
Total Precipitation in September in Loma Prieta Over the Years
This chart shows the average precipitation in September in Loma Prieta, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in September for Loma Prieta
Click on a specific day in September for detailed info on the typical weather on that day in Loma Prieta. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Loma Prieta
Have you been to Loma Prieta in September?
Share your weather experience in September in Loma Prieta.
Average Weather in Loma Prieta by Month
Click on a month below to see detailed weather info for Loma Prieta. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Loma Prieta for all months at once
