May weather forecast
Cartagena, Spain

The Roman amphitheater in Cartagena, Spain, with more buildings and distant mountains in the background
The Roman amphitheater in Cartagena, Spain, with more buildings and distant mountains in the background

Weather in May

The last month of the spring, May, is a pleasant month in Cartagena, Spain, with average temperature ranging between max 21.2°C (70.2°F) and min 17.3°C (63.1°F).

Temperature

In Cartagena, Spain, the average high-temperature is essentially the same as in April - an agreeable 21.2°C (70.2°F). The average low-temperature, in Cartagena, is 17.3°C (63.1°F).

Humidity

In Cartagena, Spain, the average relative humidity in May is 68%.

Rainfall

In Cartagena, it is raining for 3.3 days, with typically 6mm (0.24") of accumulated precipitation. In Cartagena, during the entire year, the rain falls for 66.5 days and collects up to 211mm (8.31") of precipitation.

Sea temperature

In Cartagena, the average water temperature is 18.9°C (66°F).
Note: Swimming in 18.9°C (66°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 in May is 14.2h.

Sunshine

In Cartagena, Spain, the average sunshine is 11.1h.

UV index

In Cartagena, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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.
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FAQ

What is the average humidity in May in Cartagena?

In Cartagena, Spain, the average relative humidity in May is 68%.

How many days does it rain in May in Cartagena?

In Cartagena, in May, it is raining for 3.3 days, with typically 6mm (0.24") of accumulated precipitation.

What is the sea water temperature in May in Cartagena?

In May, the average sea temperature in Cartagena, Spain, is 18.9°C (66°F). Swimming in 18.9°C (66°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Cartagena have in May?

In Cartagena, the average length of the day in May is 14.2h.

How many hours of sunshine does Cartagena have in May?

The average sunshine in May in Cartagena is 11.1h.

What is the UV index reading in May in Cartagena?

In Cartagena, Spain, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe exposure to the Sun's UV rays.

Average temperature in May
Cartagena, Spain

Average temperature in May - Cartagena, Spain
  • Average high temperature in May: 21.2°C

The warmest month (with the highest average high temperature) is August (28.2°C).
The month with the lowest average high temperature is January (15.2°C).

  • Average low temperature in May: 17.3°C

The month with the highest average low temperature is August (24.5°C).
The coldest month (with the lowest average low temperature) is February (11.2°C).

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Average pressure in May
Cartagena, Spain

Average pressure in May - Cartagena, Spain
  • Average pressure in May: 1015.7mbar

The month with the highest atmospheric pressure is December (1022mbar).
The month with the lowest atmospheric pressure is April (1014.9mbar).

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Average wind speed in May
Cartagena, Spain

Average wind speed in May - Cartagena, Spain
  • Average wind speed in May: 14.3km/h

The windiest month (with the highest average wind speed) is February (17.4km/h).
The calmest month (with the lowest average wind speed) is October (12.3km/h).

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Average humidity in May
Cartagena, Spain

Average humidity in May - Cartagena, Spain
  • Average humidity in May: 68%

The month with the highest relative humidity is August (72%).
The month with the lowest relative humidity is November (65%).

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Average rainfall in May
Cartagena, Spain

Average rainfall in May - Cartagena, Spain
  • Average rainfall in May: 6mm

The wettest month (with the highest rainfall) is September (37mm).
The driest month (with the least rainfall) is July (3mm).

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Average rainfall days in May
Cartagena, Spain

Average rainfall days in May - Cartagena, Spain
  • Average rainfall days in May: 3.3 days

The month with the highest number of rainy days is March (8.4 days).
The month with the least rainy days is July (2.3 days).

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Average sea temperature in May
Cartagena, Spain

Average sea temperature in May - Cartagena, Spain
  • Average sea temperature in May: 18.9°C

The best month for swimming (with the highest average sea temperature) is August (25.9°C).
The coldest month (with the lowest average sea temperature) is February (14.3°C).

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Average daylight in May /
Average sunshine in May
Cartagena, Spain

Average daylight in May / Average sunshine in May - Cartagena, Spain
  • Average daylight in May: 14.2h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in May: 11.1h

The month with the most sunshine is June (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6.6h).

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Average sunshine days in May
Cartagena, Spain

Average sunshine days in May - Cartagena, Spain
  • Average sunshine days in May: 26.3 days

The month with the most sunshine days is July (27.9 days).
The month with the least sunshine days is April (20.7 days).

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Average UV index in May
Cartagena, Spain

Average UV index in May - Cartagena, Spain
  • Average UV index in May: 6

Months with the highest UV index are July and August (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 4).

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Average cloud cover in May
Cartagena, Spain

Average cloud cover in May - Cartagena, Spain
  • Average cloud cover in May: 16

Months with the most cloud cover are March, April and December (Cloud cover 26).
The month with the least cloud cover is July (Cloud cover 9).

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Average visibility in May
Cartagena, Spain

Average visibility in May - Cartagena, Spain
  • 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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