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Hourly Forecast
Daylight Hours
06:48
Sunrise
18:59
Sunset
Moon
Waxing Crescent
12:35
Moonrise
21:13
Moonset
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Weather in Swansea today, September 16, 2026
Swansea looks cloudy on September 16, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward. Cloud leads the morning, peaking close to 100% near 08:00. Sunshine has little room until later in the day.
The temperature range runs from about 24°C up to 36°C. Relative humidity sits between 41% and 84%, reaching its peak around 22:00. Airflow remains manageable, reaching about 7.8 km/h around 18:00.
Expect persistent cloud later on, with amounts around 100% by 17:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 15.2 km on average, though it can drop toward 6.6 km in thicker cloud or showers. Sunrise is at 06:48 and sunset at 18:59, giving 12 hours 11 minutes of sunlight today.
The practical takeaway for Swansea on September 16, 2026 is a cloudy day that stays usable, just not particularly bright, around 36°C.
Frequently asked questions about weather in Swansea
How warm does it get in Swansea?
The warmest month in Swansea is July, with average high temperatures of 32°C. The average temperature during this period is around 27°C.
How cold does it get in Swansea?
The coldest month in Swansea is January, with average low temperatures of -3°C. The average temperature during this period is around 0°C.
What is the wettest time of year in Swansea?
The wettest month in Swansea is April, with an average of 144mm of precipitation.
What is the driest time of year in Swansea?
The driest month in Swansea is December, with an average of 69mm of precipitation.
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