May weather forecast and climate
Isla, Romania

Weather in May

May, the last month of the spring, in Isla, is an enjoyable month, with average temperature fluctuating between 7.3°C (45.1°F) and 19°C (66.2°F).

Temperature

In May, the average high-temperature marginally rises, from a moderate 14.9°C (58.8°F) in April, to a comfortable 19°C (66.2°F). In Isla, Romania, the average low-temperature is 7.3°C (45.1°F).

Humidity

In May, the average relative humidity is 76%.

Rainfall

In May, in Isla, the rain falls for 21.6 days. Throughout May, 86mm (3.39") of precipitation is accumulated. In Isla, during the entire year, the rain falls for 157.3 days and collects up to 507mm (19.96") of precipitation.

Snowfall

May through September are months without snowfall in Isla.

Daylight

In May, the average length of the day is 15h.

Sunshine

In Isla, the average sunshine is 9.8h.

UV index

The average daily maximum UV index in Isla is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 4 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.
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FAQ

What is the temperature in May in Isla?

In May, in Isla, Romania, the average high-temperature is 19°C (66.2°F), and the average low-temperature is 7.3°C (45.1°F).

What is the average humidity in May in Isla?

In Isla, the average relative humidity in May is 76%.

How much does it rain in Isla in May?

In Isla, during May, the rain falls for 21.6 days and regularly aggregates up to 86mm (3.39") of precipitation.

Does it snow in Isla in May?

In May, in Isla, Romania, it doesn't snow. April is the latest month when it typically snows.

When it does not snow in Isla?

In Isla, Romania, snow does not fall in May through September.

What is the average length of the day in May in Isla?

The average length of the day in May in Isla is 15h.

How many hours of sunshine does Isla have in May?

The average sunshine in May is 9.8h.

What is the UV index reading in May in Isla?

In May, the average daily maximum UV index in Isla is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in May
Isla, Romania

Average temperature in May - Isla, Romania
  • Average high temperature in May: 19°C

The warmest month (with the highest average high temperature) is August (26.3°C).
The month with the lowest average high temperature is January (-0.6°C).

  • Average low temperature in May: 7.3°C

The month with the highest average low temperature is August (13°C).
The coldest month (with the lowest average low temperature) is January (-6.3°C).

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Average pressure in May
Isla, Romania

Average pressure in May - Isla, Romania
  • Average pressure in May: 1014.1mbar

The month with the highest atmospheric pressure is December (1020.4mbar).
Months with the lowest atmospheric pressure are May and June (1014.1mbar).

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Average wind speed in May
Isla, Romania

Average wind speed in May - Isla, Romania
  • Average wind speed in May: 7.8km/h

The windiest month (with the highest average wind speed) is April (8.8km/h).
The calmest month (with the lowest average wind speed) is December (6.3km/h).

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Average humidity in May
Isla, Romania

Average humidity in May - Isla, Romania
  • Average humidity in May: 76%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (65%).

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Average rainfall in May
Isla, Romania

Average rainfall in May - Isla, Romania
  • Average rainfall in May: 86mm

The wettest month (with the highest rainfall) is June (96mm).
The driest month (with the least rainfall) is September (23mm).

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Average rainfall days in May
Isla, Romania

Average rainfall days in May - Isla, Romania
  • Average rainfall days in May: 21.6 days

Months with the highest number of rainy days are May and June (21.6 days).
The month with the least rainy days is January (7.6 days).

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Average snowfall in May
Isla, Romania

Average snowfall in May - Isla, Romania
  • Average snowfall in May: 0mm

The month with the highest snowfall is January (136mm).
Months with the least snowfall are May, June, July, August and September (0mm).

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Average snowfall days in May
Isla, Romania

Average snowfall days in May - Isla, Romania
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (12.2 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Isla, Romania

Average daylight in May / Average sunshine in May - Isla, Romania
  • Average daylight in May: 15h

The month with the longest days is June (Average daylight: 15.8h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in May: 9.8h

The month with the most sunshine is August (Average sunshine: 11.3h).
The month with the least sunshine is January (Average sunshine: 4.6h).

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Average sunshine days in May
Isla, Romania

Average sunshine days in May - Isla, Romania
  • Average sunshine days in May: 7.6 days

The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is June (6 days).

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Average UV index in May
Isla, Romania

Average UV index in May - Isla, Romania
  • Average UV index in May: 4

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, October, November and December (UV index 2).

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Average cloud cover in May
Isla, Romania

Average cloud cover in May - Isla, Romania
  • Average cloud cover in May: 37

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in May
Isla, Romania

Average visibility in May - Isla, Romania
  • Average visibility in May: 9km

The month with the highest visibility is August (10km).
The month with the lowest visibility is January (7km).

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