April in Speyer averages a daily high of 17.3°C with nights around 5.5°C. Expect roughly 11 wet days totalling 43.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Speyer is May–September.
Based on WAGHAUSEL KIRRLACH, GM (11.4km), 1995–2024. 30 years of April data.