Mertzig

Useldange, Diekirch, Luxembourg

Unlock Minute-by-Minute Forecast

See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.

Current Weather

8°

Mostly Clear

Feels Like: 8°

Min: 8°

Max: 22°

The next few hours will be mostly clear, with today reaching 22°C and dropping to 10°C. The coming days will be partly cloudy

Does this forecast seem accurate?

Unlock Historical Data

Compare today's weather with yesterday's data and track temperature trends over time.

Hourly Forecast

8° 10° 13° 16° 18° 20° 21° 22° 22° 22° 22° 20° 17° 16° 15° 14° 13° 12° 12° 11° 11° 11° 10° 10°
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
2am
3am
4am
5am
6am
7am
Today
Tomorrow

Daylight Hours

07:35

Sunrise

19:18

Sunset

11 hours 42 minutes of sunlight today

Moon

Waxing Gibbous

18:50

Moonrise

05:48

Moonset

Daily Forecast

Today

8°
22°

Saturday

10°
25°

Sunday

9°
25°

Monday

14°
27°

Tuesday

16°
27°

Wednesday

15°
27°

Thursday

16°
21°

Friday

10°
16°

Saturday

6°
18°

Sunday

7°
19°

Air Quality Data Available

Upgrade to access real-time air quality data for Mertzig.

UV Index

No protection needed
0 Low
Low Extreme

Humidity

78% Humid
Low High

Current stargazing conditions?

See sky darkness, moon phase, and the best viewing window for Mertzig.

View stargazing score

Weather in Mertzig today, September 25, 2026

Mertzig is set for a fine, sunny day on September 25, 2026, with only limited interruptions to the clear sky. The early hours look particularly favourable for being outside. The opening hours look fair, as cloud stays near 30% around 09:00. Morning errands should face fewer weather interruptions.

Temperatures climb from an overnight low near 8°C toward a daytime high of about 22°C. Moisture in the air spans 30%-79%, with the highest values around 08:00. Winds stay light, near 2.1 km/h by 13:00, so the day feels still more than breezy.

The afternoon keeps an overcast feel, as cloud reaches about 61% around 16:00. Outdoor plans may still want a flexible backup. Expect visibility near 43.2 km, with poorer spells close to 35.8 km. The sun rises at 07:35 and sets at 19:18, for a total of 11 hours 42 minutes of sunlight today.

Taken together, settled sunshine in Mertzig on September 25, 2026 makes outdoor timing easier, with highs near 22°C.

Frequently asked questions about weather in Mertzig

How warm does it get in Mertzig?

The warmest month in Mertzig is August, with average high temperatures of 23°C. The average temperature during this period is around 18°C.

How cold does it get in Mertzig?

The coldest month in Mertzig is January, with average low temperatures of 0°C. The average temperature during this period is around 2°C.

What is the wettest time of year in Mertzig?

The wettest month in Mertzig is January, with an average of 94mm of precipitation.

What is the driest time of year in Mertzig?

The driest month in Mertzig is April, with an average of 59mm of precipitation.

View full climate insights for Mertzig →

Airpult

Get accurate weather forecasts worldwide with real-time updates and severe weather alerts. Covering 6M+ locations with precise, reliable weather data.

© 2026 Samuenti GmbH. All rights reserved.

gb English
Metric (°C, km/h)