Climate and monthly weather forecastMertzig, Luxembourg
Climate and monthly weather forecast
Weather in January
January, like December, in Mertzig, Luxembourg, is an icy winter month, with temperature in the range of an average low of -1.3°C (29.7°F) and an average high of 2.7°C (36.9°F). In Mertzig, the lowest average temperatures are observed in January, with a high of 2.7°C (36.9°F) and a low of -1.3°C (29.7°F). Weather in January »Weather in February
February, the last month of the winter in Mertzig, is also a wintry month, with temperature in the range of an average low of -1.2°C (29.8°F) and an average high of 3.9°C (39°F). As Mertzig welcomes February, the average high-temperature records at a still wintry 3.9°C (39°F), marking an insignificant deviation from the prior month. Weather in February »Weather in March
March, the first month of the spring in Mertzig, is a chilly month, with temperature in the range of an average low of 1.1°C (34°F) and an average high of 8.4°C (47.1°F). In Mertzig, the average high-temperature in March slightly rises, from a cold 3.9°C (39°F) in February, to a chilly 8.4°C (47.1°F). Weather in March »Weather in April
April in Mertzig, Luxembourg, is a moderate spring month, with an average temperature ranging between min 4°C (39.2°F) and max 13.3°C (55.9°F). With the transition into April, Mertzig experiences a subtle uplift in average high-temperatures, adjusting from a chilly 8.4°C (47.1°F) in March to a moderate 13.3°C (55.9°F). Weather in April »Weather in May
May, the last month of the spring in Mertzig, is another refreshing month, with temperature in the range of an average high of 15.9°C (60.6°F) and an average low of 6.3°C (43.3°F). May records an average high-temperature of a still refreshing 15.9°C (60.6°F), indicating a minor variation from the preceding month. Weather in May »Weather in June
The first month of the summer, June, is an enjoyable month in Mertzig, Luxembourg, with an average temperature fluctuating between 10°C (50°F) and 19.2°C (66.6°F). The shift into June is accompanied by a modest temperature increase, with the average high-temperature edging up from a moderate 15.9°C (60.6°F) in May to a comfortable 19.2°C (66.6°F). Weather in June »Weather in July
July is an agreeable summer month in Mertzig, Luxembourg, with an average temperature ranging between min 11.6°C (52.9°F) and max 21.6°C (70.9°F). Mertzig, Luxembourg, notes an average high-temperature of a pleasant 21.6°C (70.9°F) in July, displaying minor variation from June. Weather in July »Weather in August
The last month of the summer, August, is another pleasant month in Mertzig, Luxembourg, with temperature in the range of an average low of 11.8°C (53.2°F) and an average high of 21.7°C (71.1°F). Mertzig, Luxembourg, experiences its highest temperatures in August, with an average peak of 21.7°C (71.1°F) and a low of 11.8°C (53.2°F). Weather in August »Weather in September
September, the first month of the autumn in Mertzig, is also an enjoyable month, with an average temperature fluctuating between 8.5°C (47.3°F) and 17.5°C (63.5°F). With the arrival of September, Mertzig experiences a modest decline in average high-temperatures, transitioning from a pleasant 21.7°C (71.1°F) in August to an enjoyable 17.5°C (63.5°F). Weather in September »Weather in October
October, like September, in Mertzig, Luxembourg, is a cool autumn month, with temperature in the range of an average high of 12.8°C (55°F) and an average low of 5.8°C (42.4°F). In the transition to October, Mertzig observes a minor drop in the average high-temperature, shifting from a refreshing 17.5°C (63.5°F) in September to a cool 12.8°C (55°F). Weather in October »Weather in November
November, the last month of the autumn in Mertzig, is also a frosty month, with an average temperature fluctuating between 7.5°C (45.5°F) and 2.5°C (36.5°F). November is characterized by a reduction in the average high-temperature, from a fresh 12.8°C (55°F) in October to a frosty 7.5°C (45.5°F). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Mertzig, Luxembourg, with an average temperature ranging between max 4.1°C (39.4°F) and min 0.1°C (32.2°F). A moderate decline in average high-temperatures is noted in December, moving from a chilly 7.5°C (45.5°F) in November to an icy 4.1°C (39.4°F). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Mertzig, Luxembourg
The warmest month (with the highest average high temperature) is August (21.7°C).
The month with the lowest average high temperature is January (2.7°C).
The month with the highest average low temperature is August (11.8°C).
The coldest month (with the lowest average low temperature) is January (-1.3°C).
Average pressure
Mertzig, Luxembourg
- Average pressure in January:
1017.4mbar - Average pressure in February:
1016.2mbar - Average pressure in March:
1016.4mbar - Average pressure in April:
1015.7mbar - Average pressure in May:
1016.1mbar - Average pressure in June:
1016mbar
- Average pressure in July:
1015.7mbar - Average pressure in August:
1016mbar - Average pressure in September:
1017.9mbar - Average pressure in October:
1017.3mbar - Average pressure in November:
1013.9mbar - Average pressure in December:
1018mbar
The month with the highest atmospheric pressure is December (1018mbar).
The month with the lowest atmospheric pressure is November (1013.9mbar).
Average wind speed
Mertzig, Luxembourg
- Average wind speed in January:
15.3km/h - Average wind speed in February:
15.9km/h - Average wind speed in March:
15.1km/h - Average wind speed in April:
11.9km/h - Average wind speed in May:
11.4km/h - Average wind speed in June:
10.9km/h
- Average wind speed in July:
10.4km/h - Average wind speed in August:
9.8km/h - Average wind speed in September:
10.3km/h - Average wind speed in October:
12km/h - Average wind speed in November:
13.8km/h - Average wind speed in December:
15.6km/h
The windiest month (with the highest average wind speed) is February (15.9km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).
Average humidity
Mertzig, Luxembourg
The month with the highest relative humidity is December (92%).
The months with the lowest relative humidity are April and August (79%).
Average rainfall
Mertzig, Luxembourg
The wettest month (with the highest rainfall) is December (70mm).
The driest month (with the least rainfall) is April (36mm).
Average rainfall days
Mertzig, Luxembourg
- Average rainfall days in January:
14.5 days - Average rainfall days in February:
12.7 days - Average rainfall days in March:
13.5 days - Average rainfall days in April:
14.5 days - Average rainfall days in May:
18.8 days - Average rainfall days in June:
19.1 days
- Average rainfall days in July:
19.1 days - Average rainfall days in August:
18.1 days - Average rainfall days in September:
13.1 days - Average rainfall days in October:
15 days - Average rainfall days in November:
15.1 days - Average rainfall days in December:
16.8 days
The months with the highest number of rainy days are June and July (19.1 days).
The month with the least rainy days is February (12.7 days).
Average snowfall
Mertzig, Luxembourg
The month with the highest snowfall is January (78mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days
Mertzig, Luxembourg
- Average snowfall days in January:
8.2 days - Average snowfall days in February:
8.3 days - Average snowfall days in March:
3.8 days - Average snowfall days in April:
0.7 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.3 days - Average snowfall days in November:
2.2 days - Average snowfall days in December:
6.7 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Mertzig, Luxembourg
- Average daylight in January:
8h and 42min - Average daylight in February:
10h and 6min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 48min - Average daylight in May:
15h and 24min - Average daylight in June:
16h and 18min
- Average daylight in July:
15h and 48min - Average daylight in August:
14h and 24min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 42min - Average daylight in November:
9h and 6min - Average daylight in December:
8h and 12min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in January:
3h and 12min - Average sunshine in February:
3h and 42min - Average sunshine in March:
5h and 36min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 12min - Average sunshine in June:
8h and 48min
- Average sunshine in July:
9h and 18min - Average sunshine in August:
9h and 12min - Average sunshine in September:
7h and 54min - Average sunshine in October:
5h and 6min - Average sunshine in November:
3h and 24min - Average sunshine in December:
2h and 54min
The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days
Mertzig, Luxembourg
- Average sunshine days in January:
10.3 days - Average sunshine days in February:
9.5 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
9.5 days - Average sunshine days in June:
8.1 days
- Average sunshine days in July:
9.5 days - Average sunshine days in August:
9.8 days - Average sunshine days in September:
13.7 days - Average sunshine days in October:
13.5 days - Average sunshine days in November:
10.7 days - Average sunshine days in December:
9 days
The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is June (8.1 days).
Average UV index
Mertzig, Luxembourg
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 2).
Average cloud cover
Mertzig, Luxembourg
The month with the most cloud cover is December (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility
Mertzig, Luxembourg
The months with the highest visibility are March, April and August (9km).
The months with the lowest visibility are November and December (7km).





