May weather forecast
Montevideo, Uruguay

Beautiful lawns and palm trees in the independence square outside the Centrally placed Salvo Palace in Montevideo, Uruguay
Beautiful lawns and palm trees in the independence square outside the Centrally placed Salvo Palace in Montevideo, Uruguay

Weather in May

The last month of the autumn, May, is another comfortable month in Montevideo, Uruguay, with an average temperature varying between 18.6°C (65.5°F) and 10.2°C (50.4°F).

Temperature

In May, the average high-temperature marginally drops from an agreeable 22°C (71.6°F) in April to an enjoyable 18.6°C (65.5°F). In May, in Montevideo, the average low-temperature is 10.2°C (50.4°F).

Humidity

In May, the average relative humidity is 78%.

Rainfall

In Montevideo, it is raining for 6 days, with typically 89mm (3.5") of accumulated precipitation. In Montevideo, during the entire year, the rain falls for 77 days and collects up to 1101.2mm (43.35") of precipitation.

Sea temperature

In Montevideo, the average seawater temperature in May is 15.9°C (60.6°F).
Note: For most, swimming in 15.9°C (60.6°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

In May, the average length of the day is 10h and 18min.
On the first day of the month, sunrise is at 07:21 and sunset at 18:02. On the last day of May, in Montevideo, sunrise is at 07:43 and sunset at 17:41 -03.

Sunshine

The average sunshine in May in Montevideo is 5.3h.

UV index

In May, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 3 in May transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the average humidity in May in Montevideo?

The average relative humidity in May in Montevideo is 78%.

How much does it rain in Montevideo in May?

In Montevideo, in May, it is raining for 6 days, with typically 89mm (3.5") of accumulated precipitation.

How cold is the water in May in Montevideo?

In Montevideo, the average seawater temperature in May is 15.9°C (60.6°F). For most, swimming in 15.9°C (60.6°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

What is the average length of the day in May in Montevideo?

In Montevideo, Uruguay, the average day length in May is 10h and 18min.

When are sunrise and sunset in May in Montevideo?

In May, on the first day of the month, sunrise is at 07:21 and sunset at 18:02. On the last day of the month, in Montevideo, Uruguay, sunrise is at 07:43 and sunset at 17:41 -03.

How many hours of sunshine does Montevideo have in May?

In May, the average sunshine duration in Montevideo, Uruguay, is 5.3h.

What is the UV index reading in May in Montevideo?

In May, the average daily maximum UV index in Montevideo, Uruguay, is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average sunshine
Average UV index

Average temperature in May
Montevideo, Uruguay

Average temperature in May - Montevideo, Uruguay
  • Average high temperature in May: 18.6°C

The warmest month (with the highest average high temperature) is January (28.4°C).
The month with the lowest average high temperature is July (15°C).

  • Average low temperature in May: 10.2°C

The month with the highest average low temperature is January (18°C).
The coldest month (with the lowest average low temperature) is July (7.2°C).

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Average humidity in May
Montevideo, Uruguay

Average humidity in May - Montevideo, Uruguay
  • Average humidity in May: 78%

The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is December (67%).

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Average rainfall in May
Montevideo, Uruguay

Average rainfall in May - Montevideo, Uruguay
  • Average rainfall in May: 89mm

The wettest month (with the highest rainfall) is October (108.5mm).
The driest month (with the least rainfall) is June (83.1mm).

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Average rainfall days in May
Montevideo, Uruguay

Average rainfall days in May - Montevideo, Uruguay
  • Average rainfall days in May: 6 days

The months with the highest number of rainy days are February, June, July, October and November (7 days).
The months with the least rainy days are January, March, April, May, August, September and December (6 days).

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Average sea temperature in May
Montevideo, Uruguay

Average sea temperature in May - Montevideo, Uruguay
  • Average sea temperature in May: 15.9°C

The best month for swimming (with the highest average sea temperature) is January (24.2°C).
The coldest month (with the lowest average sea temperature) is July (11.3°C).

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Average daylight in May /
Average sunshine in May
Montevideo, Uruguay

Average daylight in May / Average sunshine in May - Montevideo, Uruguay
  • Average daylight in May: 10h and 18min

The month with the longest days is December (Average daylight: 14h and 28min).
The month with the shortest days is June (Average daylight: 9h and 51min).

  • Average sunshine in May: 5h and 18min

The month with the most sunshine is January (Average sunshine: 9h and 30min).
The month with the least sunshine is June (Average sunshine: 4h and 18min).

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Average UV index in May
Montevideo, Uruguay

Average UV index in May - Montevideo, Uruguay
  • Average UV index in May: 3

The months with the highest UV index are January and December (UV index 12).
The months with the lowest UV index are June and July (UV index 2).

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