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MexicoThe weather in September in San José de la Union
It's warm in September in San José de la Union with an average temperature of 28°C. Temperatures this month range from a low of 25°C to a high of 30°C. At night, you can expect temperatures between 14°C and 17°C.
Looking for sun? September isn’t a good month to be in San José de la Union. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for San José de la Union, Mexico. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 36°C in 2020, San José de la Union 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 6°C to a highest value of 21°C.
Rainfall amount
In September, there is an average of 116 mm of precipitation, spread over 15 days. The wind speed is around 4 Bft, mostly coming from the Northeast.
Daily weather in September for San José de la Union
Click on any day in September to get detailed info about the usual weather on that day in San José de la Union. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| San José de la Union | New York | |
|---|---|---|
| Average temperature | 28°C | 27°C |
| Max. temperature | 30°C | 31°C |
| Min. temperature | 14°C | -5°C |
| Total precipitation | 116 mm | 57 mm |
| Rainy days | 15 days | 9 days |
Start of September
The month of September starts in San José de la Union with hot temps, averaging around 29°C during the day and nights around 17°C.
Mid September
By mid-September, daytime temps drop to around 28°C, with nights around 16°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of September
By the end of September, the average daytime temperature in San José de la Union is around 27°C, while nighttime temps are about 15°C. A shower might pop up, but overall, the weather will be dry and sunny.
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of San José de la Union for all months and discover the best travel time
Curious about the weather in other parts of Mexico? Check out the climate and weather for spots like Cancún, Mexico City, Playa del Carmen, or explore other destinations in Mexico.
Temperature charts
These charts show the average temperatures in September in San José de la Union, Mexico. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in San José de la Union
Temperature in September in San José de la Union over the years
Precipitation charts
These charts show the average amount of precipitation in September in San José de la Union, Mexico. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in San José de la Union
Total precipitation in September in San José de la Union over the years
Daily UV index in September in San José de la Union
This chart shows the average daily UV index in September in San José de la Union, 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.
Weather experiences in September in San José de la Union
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Average weather in San José de la Union by month
Click on a month below to see detailed weather info for San José de la Union. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.