April weather forecast
Cologne, Germany

In April, the vibe of spring permeates through every corner of Cologne. The month witnesses a swift jump in the average high temperature to 15.1°C (59.2°F), reflective of a pleasant weather boost. It is the beginning of the leisurely outdoor season, with city-dwelling locals and tourists flocking to bustling streets, cafes and parks. April's reasonably warm weather, however, comes with increased rainfall which rarely hampers the city's lively atmosphere. In May, the mild climatic trend continues to evolve into a more summer-like weather condition.

Temperature

The arrival of April in Cologne witnesses a small shift in the average high-temperature, moving from a fresh 10.9°C (51.6°F) in March to a refreshing 15.1°C (59.2°F). In Cologne, an average nighttime temperature of 4.2°C (39.6°F) is expected during April.

Rainfall

April is the month with the least rainfall in Cologne. Rain falls for 16 days and accumulates 54mm (2.13") of precipitation.

Daylight

The average length of the day in April in Cologne is 13h and 52min.
On the first day of the month, sunrise is at 07:06 and sunset at 20:05. On the last day of April, sunrise is at 06:06 and sunset at 20:52 CEST.

Sunshine

In Cologne, Germany, the average sunshine in April is 5.1h.

UV index

In April, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: In April, the maximum UV index of 4 translates into these guidelines:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.