Temperatures in May
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.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for San Diego de la Unión in May. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of May
The month of May starts in San Diego de la Unión with hot temperatures, averaging around 31°C during the day and nights close to 14°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Since temperatures can differ between day and night, it’s a good idea to dress in layers.
Mid-May
By mid-May, the average daytime temperature stays the same at 31°C, with nights close to 15°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
Temperatures vary between day and night, so it’s smart to wear layers.
End of May
By the end of May, the average daytime temperature in San Diego de la Unión will be around 31°C, with nights close to 16°C. A shower might show up, but overall the weather will be dry and sunny.
As it gets cooler in the evening, it’s best to wear layers.
Precipitation in May
In May, there is an average of 46 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
The average precipitation chance is 29% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in May for San Diego de la Unión. 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.
San Diego de la Unión in May |
London | ||
|---|---|---|---|
 Average Temperature |
31°C | 18°C | |
 High Temp |
32°C | 21°C | |
| Low Temp |
29°C | 15°C | |
 Total Precipitation |
46 mm | 46 mm | |
| Rainy Days |
9 days | 8 days | |
April
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.
Is May a good time to visit San Diego de la Unión?
May is a great month to be in San Diego de la Unión for sunny weather. You’ll get high temperatures and not too much rain this month.
Temperature records for San Diego de la Unión in May
With 37°C, San Diego de la Unión hit the highest temperature in the last 10 years in May 2018. The lowest daytime temperature in this month was 20°C in 2021. The extreme night temperatures ranged from a low of 5°C to a high of 20°C.
Check out the climate of San Diego de la Unión for all months and discover the best travel time
Curious about the climate in other parts of Mexico? Check out the weather and climate in places like Cancún, Mexico City, Playa del Carmen, or have a look at other destinations in Mexico.
Daily Temperature in May in San Diego de la Unión
This chart shows the average daily temperatures, both day and night, for each day in May in San Diego de la Unión, 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 May in San Diego de la Unión
The chart below shows the average daily precipitation in May for San Diego de la Unión, 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 May, you can expect around 9 days of rain in San Diego de la Unión.
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.
Temperature in May in San Diego de la Unión Over the Years
This chart shows the average temperature in May in San Diego de la Unión, measured in degrees Celsius, over the past years.
Total Precipitation in May in San Diego de la Unión Over the Years
This chart shows the average precipitation in May in San Diego de la Unión, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in May for San Diego de la Unión
Click on a specific day in May for detailed info on the typical 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.
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.
Or check out the climate of San Diego de la Unión for all months at once
