Koblenz before rain: How wet it will be today

On May 5th, a gloomy, damp weather day dominates in Koblenz. While it remains mostly dry in the morning, the likelihood of rain increases significantly from midday onwards. The longest wet periods are expected in the afternoon, evening, and at night – with overall only weak to moderate wind.

Temperatures during the day range between 13 and 18 degrees. At night it cools down to about 11 degrees, with occasional light rain continuing to fall.

Mostly dry in the morning – but under a thick cloud cover

Already in the morning, the sky over Koblenz appears largely overcast. For the start of the day, around 13 degrees with dense cloud cover are reported. Between 6 and 12 o'clock it remains mostly heavily overcast at 15 to 11 degrees, with the wind coming from the southwest at around 7 km/h. In the hourly data, the cloud cover is often at 7/8 to 8/8 – accordingly, the sun is hardly visible today.

Even though it remains comparatively calm in the morning, a brief shower cannot be completely ruled out: For the morning block, a precipitation risk of 15 percent is given, for the time window from 6 to 12 o'clock 35 percent. In practice, these values mainly indicate how likely it is to get wet in the respective hour – not that it will rain continuously.

From midday it becomes more unsettled: high probability of rain

From midday, the situation shifts towards "umbrella weather." For 12 to 18 o'clock, it remains heavily overcast, with occasional light rain possible. Temperatures in this section are between 15 and 12 degrees, with the wind coming from the northwest at about 12 km/h. In the daily overview, a range of 18 to 15 degrees is mentioned for midday – accompanied by occasional light rain.

What stands out is the high probability of rain: 90 percent is given for midday. The expected amount of precipitation in this time window is 0.2 l/m². Even in the hourly forecasts around midday and afternoon, the risk remains elevated.

It should be noted: These are point-in-time forecasts, i.e., predictions for a specific location at a specific time. Probability and amount of precipitation each refer to the entire hour – so they do not automatically mean that it will rain continuously during that hour, but rather how likely precipitation is to occur within the hour and what average amount is to be expected.

It remains wet in the evening and at night

In the evening, the wet tendency continues. Between 18 and 22 o'clock, persistent light rain is expected, with temperatures from 15 to 13 degrees. The precipitation risk in this section is 90 percent, the amount of precipitation is 2.5 l/m². The wind blows from the south at about 4 km/h.

At night, it continues to rain at times. For 22 to 6 o'clock, 13 to 11 degrees are reported, with light rain again at 90 percent precipitation risk and 0.4 l/m². The wind shifts to west and remains weak at around 2 km/h. Overall, the air cools down to about 11 degrees at night.

Wind remains a minor matter – wet roads more likely

The wind plays no major role overall: gusts between 7 and 16 km/h are expected for the day. Thus, the focus is less on storm danger and more on the persistently damp, gloomy weather.

All in all, it will be a gray and wet Tuesday in Koblenz, with the most pronounced rain focus from midday onwards. Anyone out and about should especially expect wet roads and recurring rain in the afternoon, evening, and at night.