Saint Peter Weather in September

September in Saint Peter brings high temperatures, with highs of 23°C (73°F) and nights dropping to 11°C (52°F). Rainfall is on the higher side this month, averaging around 82 mm (3.2 in), so keep a rain jacket handy.

Rainfall in Saint Peter in September

On average, there are about 10 days with rain during this month, averaging 82 mm (3.2 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Saint Peter in September

If you're visiting Saint Peter in September, expect excellent temperatures with highs of 23°C (73°F) and overnight lows of 11°C (52°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 11°C (52°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

If your ideal day consists of dry skies and pleasant temperatures, July and September typically offer the best circumstances for Saint Peter.