Greenock Weather in September

September in Greenock averages 17°C (63°F) during the day and 9°C (48°F) at night. Quite a bit of rainfall is typical this month, with around 135 mm (5.3 in) on average. An umbrella is a good idea.

Rainfall in Greenock in September

Analyzing past climate data, one can expect approximately 21 days of rain, averaging 135 mm (5.3 in). This is a wet month with frequent and often heavy showers. Both the number of rain days and the total rainfall are high.

Temperature in Greenock in September

September in Greenock brings moderate temperatures, with highs of 17°C (63°F) and nights around 9°C (48°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to 9°C (48°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Greenock in September

The area enjoys a moderate level of sunlight, with around 117 hours. It's a good balance between sunny and cloudy days.

Should you favor a climate that's both dry and comfortably warm, July and August typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.