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Chester Weather in September
Chester in September averages 19°C (66°F) during the day and 11°C (52°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Chester in September
On average, there are about 15 days with rain during this month, averaging 75 mm (3 in). Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.
Temperature in Chester in September
In September, expect pleasant temperatures in Chester, with highs of 19°C (66°F) and lows of 11°C (52°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows of 11°C (52°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Chester in September
The month experiences a moderate amount of sunlight, with 132 hours of sunshine. This provides a nice balance between sunshine and clouds.If you prefer dry days with pleasant temperatures, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Chester Temperature in September
Min Temperature
11°C (52°F)
Max Temperature
19°C (66°F)
Chance of Rain
50%
Precipitation
75 mm (3 in)
Rainy days
15 days
Humidity
82% *
Sunshine
132 hours *
Percentage Sunshine
*
* Data from: Liverpool, the United Kingdom (25 KM, 15 Miles).
Chester Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Chester - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Chester typically stay consistent throughout September, with daily highs averaging around 19°C (66°F). Nights are cool, with lows typically ranging from 9°C (48°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 records for Chester in September
Browse day-by-day weather records for Chester spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Chester historical weather extremes in September
Our historical data for Chester spans 1976 to 2025, revealing these weather extremes.
- Chester recorded its highest September temperature of 29°C (84°F) on September 8, 2021.
- The lowest daytime temperature in September was 11°C (52°F), recorded on September 11, 1976.
- Chester registered its coldest September night on September 19, 1986, with temperatures dropping to -1°C (30°F).
- The wettest day in September Chester was on September 24, 2012 with 51 mm (2 in) of precipitation.
Best Places in the United Kingdom in September
Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in September →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Chester 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. Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in Chester in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling9/10 -
Walking9/10 -
Camping8/10 -
Outdoor sports9/10
Chester 3-Day Forecast
More climate data for Chester
Temperature Rainfall Sunshine Humidity
See the full Chester climate overview or explore weather in the United Kingdom.
Popular in September
Where to go in September - average daytime high across popular destinations.
London
20°C (68°F) Bath19°C (66°F) Torquay19°C (66°F) Manchester
18°C (64°F) York19°C (66°F) Edinburgh17°C (63°F) Blackpool17°C (63°F) Glasgow17°C (63°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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