Mārupe, Latvia — Weather in September 2026

Climate Overview

Mārupe, Latvia in September has mild conditions, with highs averaging 17.7°C (64°F) and noticeably cooler mornings. Rain falls on about 12 days this month. Sea temperature stays cool at 18.5°C (65°F).

This month falls at the beginning of Autumn.

Daily highs in September gradually drop from around 19°C (66°F) at the start to 15°C (59°F) by month's end.

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

Expect around 9.3h of sunshine at the start of September, decreasing to 7.4h by the end.

The warmest days tend to fall around the 9th, averaging 20.4°C (69°F).

Compared to August, this month is about 4°C cooler with 2 fewer rainy days. Temperatures begin dropping heading into October.

Monthly September Averages

Temperature

18°C / 11°C

Feels Like

16°C / 9°C

Rain

12 days · 67 mm

Sunshine

8.6h / day

Humidity

78% — Humid

Wind

22 km/h

Wind Direction

SSW (196°)

Gusts

37 km/h

Daylight

12.7 h

Cloud Cover

63%

Clear Sky Days

2.5

UV Index

3.6 — Moderate

Sea Temperature

19°C

Dew Point

11°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 06:54

Daylight 12.8h

Sunset 19:42

What to Expect

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

Rain usually comes in shorter passing showers rather than all-day rain.

3 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	0°C / -4°C	-5°C / -10°C	13days (59 mm) Wet	1.7h Poor	87% Very Muggy	0.6 Low	Poor	View Details
February	1°C / -3°C	-4°C / -9°C	11days (43 mm) Wet	4h Fair	84% Humid	1.2 Low	Poor	View Details
March	6°C / -1°C	1°C / -6°C	11days (37 mm) Wet	7.1h Good	77% Humid	2.5 Moderate	Poor	View Details
April	11°C / 3°C	7°C / -2°C	10days (41 mm) Wet	10.2h Excellent	71% Muggy	3.9 Moderate	Fair	View Details
May	17°C / 8°C	14°C / 5°C	8days (50 mm) Wet	12.5h Excellent	67% Muggy	5.2 High	Good	View Details
June best	22°C / 13°C	21°C / 12°C	10days (70 mm) Wet	13.2h Excellent	70% Muggy	5.7 High	Excellent	View Details
July best	23°C / 15°C	22°C / 14°C	13days (97 mm) Wet	12.5h Excellent	74% Muggy	5.2 High	Excellent	View Details
August best	22°C / 15°C	21°C / 13°C	14days (94 mm) Wet	10.9h Excellent	76% Humid	4.7 Moderate	Excellent	View Details
September best	18°C / 11°C	16°C / 9°C	12days (67 mm) Wet	8.6h Good	78% Humid	3.6 Moderate	Good	View Details
October	11°C / 6°C	7°C / 2°C	15days (83 mm) Wet	5h Fair	83% Humid	1.7 Low	Poor	View Details
November	5°C / 2°C	1°C / -3°C	14days (60 mm) Wet	2.1h Poor	87% Very Muggy	0.8 Low	Poor	View Details
December	2°C / -2°C	-3°C / -7°C	14days (52 mm) Wet	1.4h Poor	88% Very Muggy	0.4 Low	Poor	View Details

What to Wear

Bundle up with a warm coat, scarf, and closed-toe shoes. Thermal layers underneath give flexibility between indoors and outdoors.

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

Packing List

Layered clothingLight jacketUmbrellaWaterproof jacketComfortable walking shoes

Frequently Asked Questions

Expand all

Is September a good time to visit Mārupe?

September is typically good for visiting Mārupe, with average highs of 18°C (64°F) and around 12 rainy days. Mārupe, Latvia in September has mild conditions, with highs averaging 17.7°C (64°F) and noticeably cooler mornings. Rain

Does it rain a lot in Mārupe in September?

Mārupe typically sees around 12 rainy days in September with 67 mm (2.6 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Mārupe in September?

Nights in Mārupe during September are cool at around 11°C (53°F). Bring a jacket or sweater for evenings.

What should I pack for Mārupe in September?

With highs of 18°C (64°F) and lows of 11°C (53°F) in September, we recommend: Layered clothing, Light jacket, Umbrella, Waterproof jacket, Comfortable walking shoes. Comfortable walking shoes are essential.

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

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

What is the UV index in Mārupe in September?

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

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

Mārupe gets approximately 13 hours of daylight per day in September, with around 9 hours of sunshine.

Does it snow in Mārupe in September?

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

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