May weather forecast
Frankfurt, Germany

In May, Frankfurt embraces the full swing of spring. Temperature basis broadens considerably compared to April, fluctuating from 9.1°C (48.4°F) to 20°C (68°F). The lengthening of days and sunshine is also notable with 15.4 hours of daylight and up to 6.8 hours of glorious sunshine. Unfortunately, rainfall touches its peak for the year during this month. Nevertheless, it doesn’t overshadow the charm of city in blossom due to the warming trend.

Temperature

May's arrival in Frankfurt brings a slight change in high-temperatures, adjusting from a moderate 15.4°C (59.7°F) in April to an agreeable 20°C (68°F). Frankfurt records a steady low-temperature average of 9.1°C (48.4°F) during May.

Rainfall

In May, the rain falls for 15 days. Throughout May, 63mm (2.48") of precipitation is accumulated. In Frankfurt, during the entire year, the rain falls for 169 days and collects up to 629mm (24.76") of precipitation.

Daylight

In Frankfurt, the average length of the day in May is 15h and 27min.
On the first day of May, sunrise is at 06:00 and sunset at 20:44. On the last day of the month, sunrise is at 05:20 and sunset at 21:25 CEST.

Sunshine

The average sunshine in May is 6.8h.

UV index

The average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, an average UV index of 6 transforms into the following instructions:
Deter overexposure. Protecting against the sun's effects is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.