May weather forecast
San Marcos, Peru

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Weather in May

May, the last month of the autumn in San Marcos, is also a moderate month, with an average temperature varying between 15.2°C (59.4°F) and 5.9°C (42.6°F).

Temperature

The transition into May notes an average high-temperature of a still refreshing 15.2°C (59.4°F), revealing a mild distinction from the 14.6°C (58.3°F) in April. San Marcos registers a consistent average low-temperature of 5.9°C (42.6°F) during May.

Humidity

In San Marcos, Peru, the average relative humidity in May is 81%.

Rainfall

In San Marcos, in May, during 24 rainfall days, 70mm (2.76") of precipitation is typically accumulated. In San Marcos, during the entire year, the rain falls for 274.3 days and collects up to 1378mm (54.25") of precipitation.

Snowfall

January through July, October through December are months with snowfall in San Marcos, Peru. In San Marcos, in May, during 0.6 snowfall days, 1mm (0.04") of snow is typically accumulated. Throughout the year, there are 10.7 snowfall days, and 76mm (2.99") of snow is accumulated.

Daylight

In San Marcos, the average length of the day in May is 11h and 47min.
On the first day of May, sunrise is at 06:14 and sunset at 18:05. On the last day of the month, sunrise is at 06:18 and sunset at 18:02 -05.

Sunshine

The average sunshine in May in San Marcos is 8.4h.

UV index

The months with the lowest UV index are January through August, October and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 3 during May translates into these guidelines:
Exercise prevention - Warding off sunburn is urged. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Jan 29, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What are May temperatures in San Marcos?

The high-temperature in San Marcos, Peru, during May is 15.2°C (59.4°F) and the low-temperature is 5.9°C (42.6°F).

What is the average humidity in May in San Marcos?

In May, the average relative humidity in San Marcos, Peru, is 81%.

How many days does it rain in May in San Marcos?

In San Marcos, Peru, in May, it is raining for 24 days, with typically 70mm (2.76") of accumulated precipitation.

How many days does it snow in May in San Marcos?

In San Marcos, Peru, in May, snow falls for 0.6 days, with typically accumulated 1mm (0.04") of snow.

What is the average length of the day in May in San Marcos?

The average day length in May is 11h and 47min.

When are sunrise and sunset in May in San Marcos?

On the first day of May in San Marcos, Peru, sunrise is at 06:14 and sunset at 18:05. On the last day of the month, sunrise is at 06:18 and sunset at 18:02 -05.

How long on average sun shines in May in San Marcos?

In San Marcos, the average sunshine duration in May is 8.4h.

What are the months with the lowest UV index in San Marcos?

January through August, October and December, with an average maximum UV index of 3, are months with the lowest UV index in San Marcos.

What is the UV index intensity in May in San Marcos?

In San Marcos, Peru, the average daily maximum UV index in May is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
San Marcos, Peru

Average temperature in May - San Marcos, Peru
  • Average high temperature in May: 15.2°C

The warmest month (with the highest average high temperature) is August (16.6°C).
The months with the lowest average high temperature are February and March (14.1°C).

  • Average low temperature in May: 5.9°C

The month with the highest average low temperature is March (7.3°C).
The coldest month (with the lowest average low temperature) is July (4.7°C).

Average pressure in May
San Marcos, Peru

Average pressure in May - San Marcos, Peru
  • Average pressure in May: 1015.4mbar

The month with the highest atmospheric pressure is July (1016.3mbar).
The month with the lowest atmospheric pressure is November (1013.4mbar).

Average wind speed in May
San Marcos, Peru

Average wind speed in May - San Marcos, Peru
  • Average wind speed in May: 8.2km/h

The windiest month (with the highest average wind speed) is July (12.8km/h).
The calmest month (with the lowest average wind speed) is March (6.2km/h).

Average humidity in May
San Marcos, Peru

Average humidity in May - San Marcos, Peru
  • Average humidity in May: 81%

The month with the highest relative humidity is March (87%).
The month with the lowest relative humidity is August (68%).

Average rainfall in May
San Marcos, Peru

Average rainfall in May - San Marcos, Peru
  • Average rainfall in May: 70mm

The wettest month (with the highest rainfall) is March (238mm).
The driest month (with the least rainfall) is August (20mm).

Average rainfall days in May
San Marcos, Peru

Average rainfall days in May - San Marcos, Peru
  • Average rainfall days in May: 24 days

The month with the highest number of rainy days is March (30 days).
The month with the least rainy days is August (10.9 days).

Average snowfall in May
San Marcos, Peru

Average snowfall in May - San Marcos, Peru
  • Average snowfall in May: 1mm

The month with the highest snowfall is November (19mm).
The months with the least snowfall are August and September (0mm).

Average snowfall days in May
San Marcos, Peru

Average snowfall days in May - San Marcos, Peru
  • Average snowfall days in May: 0.6 days

The month with the highest number of snowfall days is October (1.7 days).
The month with the least snowfall days is September (0 days).

Average daylight in May /
Average sunshine in May
San Marcos, Peru

Average daylight in May / Average sunshine in May - San Marcos, Peru
  • Average daylight in May: 11h and 5min

The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 42min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is October (Average sunshine: 10h and 6min).
The month with the least sunshine is March (Average sunshine: 5h and 54min).

Average sunshine days in May
San Marcos, Peru

Average sunshine days in May - San Marcos, Peru
  • Average sunshine days in May: 2.8 days

The month with the most sunshine days is July (16 days).
The months with the least sunshine days are February and March (0.3 days).

Average UV index in May
San Marcos, Peru

Average UV index in May - San Marcos, Peru
  • Average UV index in May: 3

The months with the highest UV index are September and November (UV index 4).
The months with the lowest UV index are January, February, March, April, May, June, July, August, October and December (UV index 3).

Average cloud cover in May
San Marcos, Peru

Average cloud cover in May - San Marcos, Peru
  • Average cloud cover in May: 41

The month with the most cloud cover is March (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in May
San Marcos, Peru

Average visibility in May - San Marcos, Peru
  • Average visibility in May: 8km

The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are February and March (7km).

San Marcos, Peru

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