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MexicoThe weather in May in San Diego de la Unión
It's hot in May in San Diego de la Unión with an average temperature of 31°C. Temperatures this month range from a low of 29°C to a high of 32°C. At night, you can expect temperatures between 13°C and 16°C.
May is a good month to be in San Diego de la Unión for sunny weather. You’ll have high temperatures and not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for San Diego de la Unión, 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 37°C in 2018, San Diego de la Unión reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 20°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 5°C to a highest value of 20°C.
Rainfall amount
In May, there is an average of 46 mm of precipitation, spread over 8 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Daily weather in May for San Diego de la Unión
Click on any day in May to get detailed info about the usual weather on that day in San Diego de la Unión. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| San Diego de la Unión | New York | |
|---|---|---|
| Average temperature | 31°C | 22°C |
| Max. temperature | 32°C | 28°C |
| Min. temperature | 13°C | -5°C |
| Total precipitation | 46 mm | 105 mm |
| Rainy days | 8 days | 14 days |
Start of May
The month of May starts in San Diego de la Unión with hot temps, averaging around 31°C during the day and nights around 14°C.
Mid May
By mid-May, daytime temps stay steady at around 31°C, with nights around 15°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of May
By the end of May, the average daytime temperature in San Diego de la Unión is around 31°C, while nighttime temps are about 16°C. A shower might pop up, but overall, the weather will be dry and sunny.
UV index
The UV index is a maximum of 10 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 Diego de la Unión 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 May in San Diego de la Unión, Mexico. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in San Diego de la Unión
Temperature in May in San Diego de la Unión over the years
Precipitation charts
These charts show the average amount of precipitation in May in San Diego de la Unión, 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 May in San Diego de la Unión
Total precipitation in May in San Diego de la Unión over the years
Daily UV index in May in San Diego de la Unión
This chart shows the average daily UV index in May in San Diego de la Unión, 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 May in San Diego de la Unión
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Average weather in San Diego de la Unión by month
Click on a month below to see detailed weather info for San Diego de la Unión. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.