May weather forecast
Lima, Peru

Amazing waterfront and the Costa Verde highway line just outside Lima, Peru
Amazing waterfront and the Costa Verde highway line just outside Lima, Peru

Weather in May

The last month of the autumn, May, is another pleasant month in Lima, Peru, with temperature in the range of an average low of 18.1°C (64.6°F) and an average high of 22.5°C (72.5°F).

Temperature

In May, the average high-temperature is almost the same as in April - a pleasant 22.5°C (72.5°F). The average low-temperature,, is 18.1°C (64.6°F).

Humidity

In Lima, Peru, the average relative humidity is 78%.

Rainfall

May is the only month when rain does not fall in Lima.

Sea temperature

In Lima, in May, the average water temperature is 18.8°C (65.8°F).
Note: Swimming in 18.8°C (65.8°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

The average length of the day is 11.6h.

Sunshine

In May, the average sunshine is 7.6h.

UV index

May through October, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV rays for the average person.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in May in Lima?

In Lima, Peru, the average relative humidity in May is 78%.

What is the driest month in Lima?

May is the only month when rain does not fall in Lima.

Does it rain in Lima in May?

In May, it doesn't rain. April is the latest month when it rains.

What is the sea water temperature in May in Lima?

In Lima, the average seawater temperature in May is 18.8°C (65.8°F). For most, swimming in 18.8°C (65.8°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).

How many hours of daylight does Lima have in May?

The average length of the day in May in Lima is 11.6h.

How long on average sun shines in May in Lima?

In May, the average sunshine in Lima, Peru, is 7.6h.

When is the lowest UV index in Lima?

May through October, with an average maximum UV index of 5, are months with the lowest UV index in Lima, Peru.

What is the UV index reading in May in Lima?

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in May
Lima, Peru

Average temperature in May - Lima, Peru
  • Average high temperature in May: 22.5°C

The warmest month (with the highest average high temperature) is February (25.4°C).
The month with the lowest average high temperature is August (20°C).

  • Average low temperature in May: 18.1°C

The month with the highest average low temperature is February (21.4°C).
The coldest month (with the lowest average low temperature) is August (14.9°C).

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Average pressure in May
Lima, Peru

Average pressure in May - Lima, Peru
  • Average pressure in May: 1015.7mbar

The month with the highest atmospheric pressure is August (1016.4mbar).
The month with the lowest atmospheric pressure is February (1013.8mbar).

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Average wind speed in May
Lima, Peru

Average wind speed in May - Lima, Peru
  • Average wind speed in May: 12.5km/h

The windiest month (with the highest average wind speed) is September (13.1km/h).
The calmest month (with the lowest average wind speed) is February (10.4km/h).

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Average humidity in May
Lima, Peru

Average humidity in May - Lima, Peru
  • Average humidity in May: 78%

The month with the highest relative humidity is December (79%).
Months with the lowest relative humidity are August and September (75%).

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Average rainfall in May
Lima, Peru

Average rainfall in May - Lima, Peru
  • Average rainfall in May: 0mm

The wettest month (with the highest rainfall) is February (4mm).
The driest month (with the least rainfall) is May (0mm).

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Average rainfall days in May
Lima, Peru

Average rainfall days in May - Lima, Peru
  • Average rainfall days in May: 0.6 days

The month with the highest number of rainy days is March (5.7 days).
The month with the least rainy days is November (0.2 days).

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Average sea temperature in May
Lima, Peru

Average sea temperature in May - Lima, Peru
  • Average sea temperature in May: 18.8°C

The best month for swimming (with the highest average sea temperature) is March (20.9°C).
The coldest month (with the lowest average sea temperature) is September (15.8°C).

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Average daylight in May /
Average sunshine in May
Lima, Peru

Average daylight in May / Average sunshine in May - Lima, Peru
  • Average daylight in May: 11.6h

The month with the longest days is December (Average daylight: 12.8h).
The month with the shortest days is June (Average daylight: 11.4h).

  • Average sunshine in May: 7.6h

The month with the most sunshine is October (Average sunshine: 12h).
The month with the least sunshine is June (Average sunshine: 7.4h).

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Average sunshine days in May
Lima, Peru

Average sunshine days in May - Lima, Peru
  • Average sunshine days in May: 29.9 days

Months with the most sunshine days are August and October (30 days).
The month with the least sunshine days is February (21.1 days).

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Average UV index in May
Lima, Peru

Average UV index in May - Lima, Peru
  • Average UV index in May: 5

Months with the highest UV index are January, February, March, April, November and December (UV index 6).
Months with the lowest UV index are May, June, July, August, September and October (UV index 5).

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Average cloud cover in May
Lima, Peru

Average cloud cover in May - Lima, Peru
  • Average cloud cover in May: 15

The month with the most cloud cover is January (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 9).

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Average visibility in May
Lima, Peru

Average visibility in May - Lima, Peru
  • Average visibility in May: 10km

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

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