May weather forecast
Arequipa, Peru

May

Weather in May

May sees a further drop in temperatures, and the weather in Arequipa becomes cooler. This is accompanied by an overall reduction in humidity and rainfall, rendering the air crisp and clear. The wind, already light in previous months, continues to blow gently, and the cloud cover is minimized. Additionally, while the day's length shrinks slightly, the clarity and brightness of the days remain as sunlight persists for most of the day. May distinguishes itself with an almost arid weather pattern, with rainfall dropping to a scant 2mm (0.08") compared to 17mm (0.67") in April.

Temperature

May's onset sees an average high-temperature of a still comfortable 16.7°C (62.1°F), exhibiting a slight fluctuation from the previous month. In the month of May, the nighttime temperature dips to a steady average of 8.8°C (47.8°F).

Humidity

The average relative humidity in May is 48%.

Rainfall

In Arequipa, in May, during 2.4 rainfall days, 2mm (0.08") of precipitation is typically accumulated. In Arequipa, during the entire year, the rain falls for 84.2 days and collects up to 260mm (10.24") of precipitation.

Daylight

In May, the average length of the day is 11h and 21min.
On the first day of the month, sunrise is at 05:58 and sunset at 17:28. On the last day of May, sunrise is at 06:07 and sunset at 17:20 -05.

Sunshine

In Arequipa, Peru, the average sunshine in May is 8.1h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 4. The months with the lowest UV index are January through December, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 4 in May converts into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

What are May temperatures in Arequipa?
The average high-temperature and low-temperature during May are 16.7°C (62.1°F) and 8.8°C (47.8°F) respectively.
What is the average humidity in May?
The average relative humidity in May is 48%.
How many days does it rain in May?
In Arequipa, in May, during 2.4 rainfall days, 2mm (0.08") of precipitation is typically accumulated.
How many hours of daylight does Arequipa have in May?
In May, the average day length is 11h and 21min.
When is the sunrise / sunset in May?
In May, on the first day of the month, sunrise is at 05:58 and sunset at 17:28. On the last day of the month, sunrise is at 06:07 and sunset at 17:20 -05.
How long on average sun shines in May?
The average sunshine duration in May is 8.1h.
What is the month with the highest UV index?
January through December, with an average maximum UV index of 4, are months with the highest UV index.
When is the lowest UV index?
January through December, with an average maximum UV index of 4, are months with the lowest UV index.
How high is the UV index in May in Arequipa?
In Arequipa, Peru, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May
Arequipa, Peru
  • Average high temperature in May: 16.7°C

The warmest month (with the highest average high temperature) is October (17.9°C).
The month with the lowest average high temperature is February (15.2°C).

  • Average low temperature in May: 8.8°C

The month with the highest average low temperature is February (10.7°C).
The coldest month (with the lowest average low temperature) is July (6.7°C).

Average pressure in May
Arequipa, Peru
  • Average pressure in May: 1017.7mbar

The months with the highest atmospheric pressure are June and July (1018.2mbar).
The months with the lowest atmospheric pressure are February and December (1015.1mbar).

Average wind speed in May
Arequipa, Peru
  • Average wind speed in May: 6.8km/h

The windiest month (with the highest average wind speed) is January (9.6km/h).
The calmest month (with the lowest average wind speed) is June (6.5km/h).

Average humidity in May
Arequipa, Peru
  • Average humidity in May: 48%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (35%).

Average rainfall in May
Arequipa, Peru
  • Average rainfall in May: 2mm

The wettest month (with the highest rainfall) is January (81mm).
The driest months (with the least rainfall) are June and August (1mm).

Average rainfall days in May
Arequipa, Peru
  • Average rainfall days in May: 2.4 days

The month with the highest number of rainy days is February (18.2 days).
The month with the least rainy days is August (0.8 days).

Average daylight in May /
Average sunshine in May
Arequipa, Peru
  • Average daylight in May: 11h and 2min

The month with the longest days is December (Average daylight: 13h and 6min).
The month with the shortest days is June (Average daylight: 11h and 12min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is December (Average sunshine: 11h and 6min).
The month with the least sunshine is July (Average sunshine: 7h and 36min).

Average sunshine days in May
Arequipa, Peru
  • Average sunshine days in May: 27.9 days

The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is February (8.5 days).

Average UV index in May
Arequipa, Peru
  • Average UV index in May: 4

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

Average cloud cover in May
Arequipa, Peru
  • Average cloud cover in May: 7

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 3).

Average visibility in May
Arequipa, Peru
  • Average visibility in May: 10km

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and February (9km).

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