Koblenz today: First dry, then comes the rain

In Koblenz, it will remain mostly dry during the day on Tuesday, May 19, 2026, according to the forecast – even though dense clouds will dominate and the sun will hardly have a chance. The evening will be much more interesting: then the risk of rain increases significantly, and light rain is likely at night.

The course of the day appears overall gloomy. In the morning and into midday, it will be heavily overcast, with temperatures between 6 and 16 degrees. In the second half of the day, the picture changes: for the evening and night, the probability of precipitation is 90 percent, with light rain in the evening and occasional light rain at night.

It remains mostly dry in Koblenz during the day

The day starts with a closed cloud cover. For the morning, 14 degrees are forecast with a daily minimum of 6 degrees; the risk of precipitation is 30 percent. At midday, it remains heavily overcast, the temperature rises to up to 16 degrees (15 degrees as the lowest value), also with a 30 percent chance of rain.

This means that until the afternoon, dense cloud cover rather than rain will be the main feature: it will likely remain predominantly gray, without precipitation necessarily affecting plans.

In the evening and at night, the risk of rain increases significantly

From the evening onwards, the probability of rain increases significantly. Although it will remain heavily overcast, light rain may already fall in some places. For the evening, a precipitation probability of 90 percent is given, with temperatures around 16 degrees (13 degrees as the lowest value).

The development continues at night: occasional light rain is considered likely, with 13 degrees and lows around 12 degrees – also with a 90 percent chance of rain. The expected amounts of precipitation also underline that the focus is rather on the second half of the day: for the evening, 0.3 liters per square meter are forecast, for the night 3.7 liters per square meter. Those planning longer trips or outdoor activities have better chances of dry periods during the day than late in the evening or at night.

Little sun, only moderate wind

What stands out above all is the consistently closed cloud cover: the forecast describes the day as continuously heavily overcast, the sun is hardly visible today. The wind remains comparatively moderate; gusts between 15 and 29 km/h are expected.

All in all, it will be a predominantly gray day in Koblenz, which will remain rather dry until the afternoon – before the risk of rain increases significantly in the evening and at night. Since this is a forecast with fixed times, individual hourly values may still shift at short notice.