Harmęże, Poland — Weather in September 2026

Climate Overview

Harmęże, Poland in September has mild conditions, with highs averaging 19.7°C (67°F) and noticeably cooler mornings. Rain falls on about 12 days this month.

This month falls at the beginning of Autumn.

Daily highs in September gradually drop from around 22°C (71°F) at the start to 17°C (63°F) by month's end.

Rainfall is heaviest during the middle of the month, while the last third tends to be drier.

Expect around 8.8h of sunshine at the start of September, decreasing to 7.3h by the end.

The warmest days tend to fall around the 10th, averaging 22.6°C (73°F).

Compared to August, this month is about 4°C cooler with 1 fewer rainy days. Temperatures begin dropping heading into October.

Monthly September Averages

Temperature

20°C / 11°C

Feels Like

19°C / 10°C

Rain

12 days · 98 mm

Sunshine

8.1h / day

Humidity

78% — Humid

Wind

15 km/h

Wind Direction

SSW (197°)

Gusts

32 km/h

Daylight

12.6 h

Cloud Cover

59%

Clear Sky Days

4.7

UV Index

3.9 — Moderate

Dew Point

12°C — Comfortable

Moon Phase

Waxing Crescent · 11%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

High Low

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 06:19

Daylight 12.6h

Sunset 18:57

What to Expect

Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.

2 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	2°C / -4°C	-2°C / -8°C	13days (59 mm) Wet	3.9h Poor	83% Humid	1.2 Low	Poor	View Details
February	5°C / -2°C	1°C / -6°C	13days (66 mm) Wet	5.1h Fair	80% Humid	1.7 Low	Poor	View Details
March	9°C / 0°C	5°C / -4°C	11days (47 mm) Wet	7.6h Good	73% Muggy	3.3 Moderate	Poor	View Details
April	14°C / 4°C	11°C / 1°C	12days (66 mm) Wet	9.2h Good	71% Muggy	4.4 Moderate	Fair	View Details
May best	18°C / 8°C	17°C / 6°C	14days (85 mm) Wet	10.5h Excellent	73% Muggy	5.4 High	Good	View Details
June best	23°C / 14°C	23°C / 13°C	12days (78 mm) Wet	11.8h Excellent	73% Muggy	5.9 High	Excellent	View Details
July best	24°C / 15°C	24°C / 15°C	15days (108 mm) Wet	11.5h Excellent	73% Muggy	5.8 High	Excellent	View Details
August best	24°C / 15°C	25°C / 15°C	13days (106 mm) Wet	10.4h Excellent	75% Muggy	5.2 High	Excellent	View Details
September best	20°C / 11°C	19°C / 10°C	12days (98 mm) Wet	8.1h Good	78% Humid	3.9 Moderate	Good	View Details
October	14°C / 7°C	12°C / 4°C	11days (75 mm) Wet	6h Fair	80% Humid	2.3 Moderate	Fair	View Details
November	8°C / 2°C	5°C / -2°C	11days (56 mm) Wet	4.2h Fair	85% Humid	1.4 Low	Poor	View Details
December	4°C / -1°C	0°C / -6°C	12days (61 mm) Wet	3.3h Poor	86% Very Muggy	0.9 Low	Poor	View Details

What to Wear

Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

Warm evening layerUmbrellaWaterproof jacketComfortable walking shoes

Frequently Asked Questions

Expand all

Is September a good time to visit Harmęże?

September is typically good for visiting Harmęże, with average highs of 20°C (67°F) and around 12 rainy days. Harmęże, Poland in September has mild conditions, with highs averaging 19.7°C (67°F) and noticeably cooler mornings. Rai

Does it rain a lot in Harmęże in September?

Harmęże typically sees around 12 rainy days in September with 98 mm (3.9 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Harmęże in September?

Nights in Harmęże during September are cool at around 11°C (52°F). Bring a jacket or sweater for evenings.

What should I pack for Harmęże in September?

With highs of 20°C (67°F) and lows of 11°C (52°F) in September, we recommend: Warm evening layer, Umbrella, Waterproof jacket, Comfortable walking shoes. Comfortable walking shoes are essential.

Is September among the best months weather-wise in Harmęże?

Yes, September offers some of the best weather conditions in Harmęże with comfortable temperatures and lower chances of rain.

What is the UV index in Harmęże in September?

The average UV index in Harmęże during September is 4 (moderate). Sunscreen and sunglasses are recommended during midday hours.

How many hours of daylight are there in Harmęże in September?

Harmęże gets approximately 13 hours of daylight per day in September, with around 8 hours of sunshine.

Does it snow in Harmęże in September?

Snow is uncommon in Harmęże during September based on 10-year climate averages.

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