Jelgava Weather in September
September in Jelgava brings pleasant temperatures around 18°C (64°F) during the day, dropping to 9°C (48°F) at night, with some rainfall expected.
Rainfall in Jelgava in September
Historically, September sees about 16 days of rain, with a monthly average of 59 mm (2.3 in). Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.
Temperature in Jelgava in September
In September, expect pleasant temperatures in Jelgava, with highs of 18°C (64°F) and lows of 9°C (48°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights fall to 9°C (48°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Jelgava in September
The month brings about 154 hours of sunlight, offering a comfortable mix of sun and overcast.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July and August typically offer the best weather for Jelgava.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Latvia, check out our Jelgava's climate page.
Jelgava Temperature in September
Min Temperature
9°C (48°F)
Max Temperature
18°C (64°F)
Chance of Rain
53%
Precipitation
59 mm (2.3 in)
Rainy days
16 days
Humidity
81% *
Sunshine
154 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Jelgava typically drop from around 19°C (66°F) at the start of September to approximately 14°C (57°F) by the end. Nights are cool, with lows typically ranging from 6°C (43°F) to 11°C (52°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Jelgava in September
Browse day-by-day weather records for Jelgava spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Jelgava historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Jelgava.
- On September 21, 2018, temperatures climbed to 30°C (86°F), marking the warmest September day on record.
- The coldest September day was on September 26, 1986, with a maximum of 7°C (45°F).
- Jelgava registered its coldest September night on September 30, 1993, with temperatures dropping to -5°C (23°F).
Best Places in Latvia in September
Find out more about the weather in Latvia and which places have the best travel conditions in this month. See all of Latvia in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Jelgava in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Jelgava in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Latvia, check out our Jelgava's climate page.
Temperature Rainfall Sunshine Humidity
See the full Jelgava climate overview or explore weather in Latvia.
