May weather forecastSillamäe, Estonia

May

Weather in May

In May, Sillamäe, Estonia welcomes a mild climate, paving the way for summer. This shift is evident in the significantly increased daylight hours, the temperate sea, and the reduced snowfall. A notable uptick is observed in rainfall, moving from 29mm (1.14") in April to 34mm (1.34") in May. Nevertheless, the increased sunshine duration and relative humidity ensure a pleasant atmosphere throughout the city. Gradually, trees start to flush with green, offering delightful natural vistas.

Temperature

Noticing a change, the average high-temperature in Sillamäe, Estonia, during May moves from April's frosty 6°C (42.8°F) to a fresh 12.8°C (55°F). Throughout May nights, Sillamäe registers an average low-temperature of 6.9°C (44.4°F).

Humidity

The months with the lowest humidity in Sillamäe are May and June, with an average relative humidity of 73%.

Rainfall

In Sillamäe, in May, during 12.3 rainfall days, 34mm (1.34") of precipitation is typically accumulated. In Sillamäe, during the entire year, the rain falls for 151.8 days and collects up to 510mm (20.08") of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.9 snowfall days, in May, Sillamäe aggregates 7mm (0.28") of snow. In Sillamäe, Estonia, during the entire year, snow falls for 90.8 days and aggregates up to 773mm (30.43") of snow.

Sea temperature

In May, the average sea temperature in Sillamäe, Estonia, is 7.3°C (45.1°F).
Note: Dipping in 7.3°C (45.1°F) at temperatures less than 10°C (50°F) without proper gear can lead to pronounced cold shock and breathing difficulties.

Daylight

The average length of the day in May is 17h and 3min.
On the first day of May in Sillamäe, sunrise is at 05:08 and sunset at 21:03. On the last day of the month, sunrise is at 04:04 and sunset at 22:09 EEST.

Sunshine

The average sunshine in May is 9.7h.

UV index

In Sillamäe, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum UV index of 4 during May translates into these guidelines:
Take necessary precautions - Defending against sun damage is advocated. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.

Updated: Jan 29, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

May temperatures in Sillamäe, Estonia, vary between a high-temperature of 12.8°C (55°F) and a low-temperature of 6.9°C (44.4°F).

May and June, with an average relative humidity of 73%, are the least humid months.

The average relative humidity in May in Sillamäe is 73%.

In Sillamäe, Estonia, in May, during 12.3 rainfall days, 34mm (1.34") of precipitation is typically accumulated.

May is the last month it regularly snows. During 0.9 snowfall days, in May, Sillamäe aggregates 7mm (0.28") of snow.

In Sillamäe, Estonia, in May, the average water temperature is 7.3°C (45.1°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

In May, the average day length is 17h and 3min.

In May, on the first day of the month, sunrise is at 05:08 and sunset at 21:03. On the last day of the month, in Sillamäe, sunrise is at 04:04 and sunset at 22:09 EEST.

The average sunshine duration in May in Sillamäe is 9.7h.

The average daily maximum UV index in May in Sillamäe is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

6°C

12.8°C

17.2°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

15.4km/h

14.4km/h

15.4km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

6.3

0.9

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

13.7

11.9

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Sillamäe, Estonia

Average high temperature in May: 12.8°C

The warmest month (with the highest average high temperature) is July (20.4°C).
The month with the lowest average high temperature is January (-2.8°C).

Average low temperature in May: 6.9°C

The month with the highest average low temperature is July (14.8°C).
The coldest months (with the lowest average low temperature) are January and February (-6°C).

Average pressure in May
Sillamäe, Estonia

Average pressure in May: 1015.1mbar

The month with the highest atmospheric pressure is May (1015.1mbar).
The month with the lowest atmospheric pressure is December (1010mbar).

Average wind speed in May
Sillamäe, Estonia

Average wind speed in May: 13.4km/h

The windiest month (with the highest average wind speed) is December (20.8km/h).
The calmest month (with the lowest average wind speed) is May (13.4km/h).

Average humidity in May
Sillamäe, Estonia

Average humidity in May: 73%

The month with the highest relative humidity is February (92%).
The months with the lowest relative humidity are May and June (73%).

Average rainfall in May
Sillamäe, Estonia

Average rainfall in May: 34mm

The wettest month (with the highest rainfall) is August (65mm).
The driest month (with the least rainfall) is April (29mm).

Average rainfall days in May
Sillamäe, Estonia

Average rainfall days in May: 12.3 days

The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is February (4.8 days).

Average snowfall in May
Sillamäe, Estonia

Average snowfall in May: 7mm

The month with the highest snowfall is January (164mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in May
Sillamäe, Estonia

Average snowfall days in May: 0.9 days

The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in May
Sillamäe, Estonia

Average sea temperature in May: 7.3°C

The best month for swimming (with the highest average sea temperature) is July (19.9°C).
The coldest month (with the lowest average sea temperature) is February (-0.6°C).

Average daylight in May /
Average sunshine in May
Sillamäe, Estonia

Average daylight in May: 17h and 0min

The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 12min).

Average sunshine in May: 9h and 42min

The month with the most sunshine is June (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).

Average sunshine days in May
Sillamäe, Estonia

Average sunshine days in May: 16 days

The month with the most sunshine days is May (16 days).
The month with the least sunshine days is December (4.6 days).

Average UV index in May
Sillamäe, Estonia

Average UV index in May: 4

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).