Lima
Peru
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
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
May, the last month of the autumn, in Lima, is another pleasant month, with average temperature ranging between max 22.5°C (72.5°F) and min 18.1°C (64.6°F).

Temperature

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

Humidity

In May, the average relative humidity is 78%.

Rainfall

May is the only month when rain does not fall.

Sea temperature

In May, the average sea temperature in Lima 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

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

Sunshine

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

UV index

Months with the lowest UV index are May through October, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 5 in May transform into the following instructions:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in May in Lima?

In Lima, in May, the average high-temperature is 22.5°C (72.5°F), and the average low-temperature is 18.1°C (64.6°F).

What is the average humidity in May in Lima?

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

Does it rain in Lima in May?

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

What is the driest month in Lima?

The only month without rainfall in Lima is May.

What is the sea temperature in May in Lima?

In May, the average sea temperature 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.

What is the month with the lowest UV index in Lima?

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

What is the UV index reading in May in Lima?

In Lima, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to the UV radiation.
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).

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%).

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 lowest rainfall) is May (0mm).

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 lowest number of rainy days is November (0.2 days).

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).

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 shortest days is June (Average daylight: 11.4h).

  • Average sunshine in May: 7.6h

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

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).