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Weather in Latvia in September – is it worth traveling to?

Is the weather pleasant in Latvia? See historical weather data for September to see if it meets your needs.
Check flight prices to Latvia on Avionero:
September

Is the weather good in Latvia in September 2025?

OK Weather
Chill
🌧️
Rainy

For the past few decades, the average daily temperatures in Latvia during September have been around +61°F.

In Latvia the temperature rarely varies more than seven degrees between the different parts with the highest temperature +61°F in Riga to +61°F in Riga. So you should be able to pack for similar conditions wherever you go in the country.

Temperature, wind and humidity in September

Average
Riga
☀️
+61°F
Avg. max. temperature
+28°F
Min.
+82°F
Max.
58 mm
Total precipitation
81%
Avg. humidity
2 m/s
Avg. wind
5 ☀️
Sunny Days
8 ⛅️
Cloudy
16 🌦
Rainy
Our opinion: Latvia has OK weather in September.
Latvia in September – what city is the…
  • rainiest? Riga, with an average of 2 mm of rain and humidity of 81%;
  • warmest? Riga, with daytime temperatures averaging +61°F;
  • windiest? Riga, with an average of 2 m/s;
  • coolest? Riga, with daytime temperatures averaging +61°F;
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How good is the weather in Latvia in September?

During September, the Latvia is characterized by variable weather with air pressure around 1013 HPa and therefore elements of sun, rain, and wind – with a little extra emphasis on the latter two. The humidity in September ranges between 81% in Riga and 81% in Riga.

How warm is it in Latvia during September?

Variable weather with sun, rain and wind: +61°F in average daily temperature.

This is how hot it usually is in September

The average daily temperatures above don't tell you everything about how hot it can be in Latvia. For example, cold nights can make a big difference for those staying in tents or unheated houses. Extra hot days, on the other hand, can make a big difference for those who plan to engage in demanding physical training or competition. So here are some more temperatures for September:
Average
Riga
  • Average maximum temperature for the month: +61°F;
  • Average minimum temperature for the month: +48°F;
  • Highest monthly temperature: +66°F;
  • Lowest monthly temperature: +45°F;

Monthly temperatures:

Average
Riga
  • Warmest: July with an average +72°F during the day;
  • Coldest: January with an average +30°F of the day;
  • Hottest month in hottest city: July in Riga;
  • Coldest month in coolest city: January in Riga;

Winds in Latvia during September

Wind speed in Latvia in September based on historical data:
Average
Riga

September tends to offer light winds averaging 2 m/s. However, coastal cities may experience breezes during the mornings and afternoons.

Comparison between cities in September:

  • Highest average wind speed: Riga with 3 m/s;
  • Lowest average wind speed: Riga with 3 m/s;
  • Windiest day of the month: Riga with 3 m/s;
  • The least windy day of the month: Riga with 2 m/s;

Humidity and precipitation in Latvia in September

Amount of rainfall in mm during September in Latvia based on historical data:
Average
Riga
September tends to be an extremely humid month with 79% humidity and 45 mm rainfall. In general the humidity tends to be a little lower in mountainous regions and more humid closer to water.

Comparison between cities in September:

Average
Riga
  • Highest average rainfall: Riga with 58 mm;
  • Lowest average rainfall: Riga with 58 mm;
  • Most number of rainy days: Riga with 16 rainy days;
  • Least number of rainy days: Riga with 16 rainy days;
  • Highest risk of rain during the day: Riga with 53%;
  • Least risk of rain during the day: Riga with 53%;
  • Highest average humidity: Riga with 81%;
  • Lowest average humidity: Riga with 81%;

Tips for traveling to Latvia in September

Looking for some tips for traveling to the sun, snow, or whatever you're aiming for Latvia? Activities, weather, and clothing are closely linked. In addition, it's important to pack only what you really need so you don't have to worry about heavy packing or paying extra baggage fees.

Here is some advice on what to pack and what kind of activities you can do in the Latvia based on the weather that September is expected to bring. The advice applies to the country as a whole – local weather and possible activities may differ somewhat.

rainy, chill weather with light winds and very high humidity in September
Avionero

Pack right for September

The weather makes a difference when it comes to packing - especially which items should go in your suitcase. The tips below are designed to help you pack light and right without carrying more than necessary.
  • For light showers, an umbrella or a thin and light rain cape is usually sufficient, while more rain may require rainwear and rain boots.
  • When it’s cold you need warm clothes such as a hat, gloves and scarf. If you plan on varied activities it might be a good idea to pack flexible clothing and wear multiple layers, as you can then easily adapt and regulate the temperature. For example you may want to wear cotton closest to the body, covered by a waterproof layer of wool or synthetics and then some warm layer of for example wool, fleece or down.
  • Light winds are probably most comfortable in hot weather but is cooling in cool and cold weather. If it is hot (when the air temperature is about 30 degrees), the wind can have a warming effect. A thin, windproof jacket and long trousers help to counteract these effects.
  • High humidity means that the air conducts heat to and from the skin more easily. For example, if the air is hot (above skin temperature), it will be harder to stay cool. On the other hand, if the air is cool or cold, it is more difficult to stay warm. In high humidity, the choice of clothing makes less of a difference. However, your physical activity plays a bigger role.

FAQ

Frequently asked questions about the weather in Latvia in September:

What can you do outside when it's warm in Latvia?

Bathing and sunbathing can be suitable. Warm (but not hot) days are also good for activities that are not so physically demanding: sightseeing on foot, by boat, on a scooter, camel riding. You can also exercise easily as long as you make sure to cool down and quench thirst.

Is September a good time to visit Latvia?

It’s always a good time to visit Latvia, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Monthly weather in Latvia

Source of the data

For this page, we’ve looked at the typical weather in Latvia, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.