Swansea
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Swansea Weather in September

Swansea in September sees moderate daytime temperatures of 15°C (59°F) and nighttime lows of 7°C (45°F). Moderate rainfall is typical, with around 49 mm (1.9 in) for the month.

Rainfall in Swansea in September

On average, there are about 15 days with rain during this month, averaging 49 mm (1.9 in). The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Swansea in September

Swansea in September gets highs of 15°C (59°F) during the day and drops to 7°C (45°F) at night. The difference between afternoon and evening temperatures is usually noticeable. Nights drop to 7°C (45°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

If you prefer dry days with pleasant temperatures, January, February and March 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.

Swansea Temperature in September

Min Temperature
7°C (45°F)
Max Temperature
15°C (59°F)
Chance of Rain
49%
Precipitation
49 mm (1.9 in)
Rainy days
15 days

Swansea Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Swansea - and find the best time to visit.

Best Places in Australia in September

Find out more about the weather in Australia and which places have the best travel conditions in this month. See all of Australia 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 Swansea in September

Pack for changing conditions in Swansea in September. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Rain gear is recommended, you can expect wet weather on multiple days.

What To Do in Swansea in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    6/10
  • Walking
    6/10
  • Camping
    5/10
  • Outdoor sports
    10/10

Swansea 3-Day Forecast

More climate data for Swansea

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.