Weather in Pátra in September

A good month. September works. It is not the peak, but nothing about it fights you. Highs average 30.5 °C, lows 19.3 °C, and rain falls on 7 days — nothing in the month is working against you.

September ranks 6 of 12 in Pátra: past the worst of the year but short of May, which is the month to book if the dates are open.

Rain on 7 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Pack for 30.5 °C days and 19.3 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 16 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest September day reached 39.7 °C and the coldest night fell to 11.6 °C, and the wettest single day dropped 47 mm — roughly 94% of the month's rain in one day.

September is moderately variable: 11 mm in the driest year against 114 mm in the wettest, around an average of 50 mm. Roughly two Septembers in three land near that average, and the third does something else entirely.

Wind is light at 7.6 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 64%.

How September sits in the year

The month is on the way down: 5.5 °C cooler than August, with October dropping another 5.6 °C. The first week and the last are not the same trip.

Daylight in September

12.5 hours of daylight, losing 1.2 hours across the month. That is between Pátra's extremes of 14.8 and 9.5 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 25.7 °C in September — warm enough to stay in as long as you like. This is the warmest the water gets all year.

How busy it gets

Shoulder. The value months — prices ease off and you get the place closer to itself.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

September in Pátra versus nearby

If Pátra is one option among several, the nearby comparison is worth making. Kalamata is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Volos is a better bet in September — 5.2 °C cooler, the same number of rain days.

So: September works, with May the better month by 17 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Pátra

See all twelve months in Pátra, or where else to go in September.