Killay weather

The Killay weather guide shows monthly weather averages (including daytime and night-time temperatures, rainfall and hours of sunshine) for holidays in Killay, Swansea Area, Wales in 2022/2023.

Killay weather averages

Check the Killay weather averages for each month of the year including maximum daytime and minimum night-time temperatures, monthly rainfall, number of days with rain and average daily hours of sunshine for Killay, Swansea Area, Wales.

Max Day Temperature (°C)

Hours of Sunshine (daily)

  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec

Days with some Rainfall

Min Night Temperature (°C)

Monthly Rainfall (mm)

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Killay weather by month

Check the weather for Killay, Swansea Area, Wales for a particular month by selecting from the list below. This gives the best indication of what to expect from the weather months in advance.

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Killay weather in January

The average maximum daytime temperature in Killay in January is a cold 7°C (45°F), while the average minimum night-time temperature is a cold 2°C (36°F). You can expect on average 2 hours of sunshine a day in Killay during January.

  • 7°C maximum daytime temperature in January in Killay7
    7°C max day temperature
  • 2 hours of sunshine per day in January in Killay2
    2 hours of sunshine per day
  • 20 days with some rainfall in January in Killay20
    20 days with some rainfall
  • 2°C minimum night-time temperature in January in Killay2
    2°C min night temperature
  • 161 mm monthly rainfall in January in Killay161
    161 mm of monthly rainfall

On average 161 mm (6.3 inches) of rain normally falls in Killay during January with rain falling on 20 days of the month.

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Killay weather in February

The average maximum daytime temperature in Killay in February is a cool 8°C (46°F), while the average minimum night-time temperature is a cold 2°C (36°F). You can expect on average 3 hours of sunshine a day in Killay during February.

  • 8°C maximum daytime temperature in February in Killay8
    8°C max day temperature
  • 3 hours of sunshine per day in February in Killay3
    3 hours of sunshine per day
  • 16 days with some rainfall in February in Killay16
    16 days with some rainfall
  • 2°C minimum night-time temperature in February in Killay2
    2°C min night temperature
  • 112 mm monthly rainfall in February in Killay112
    112 mm of monthly rainfall

On average 112 mm (4.4 inches) of rain normally falls in Killay during February with rain falling on 16 days of the month.

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Killay weather in March

The average maximum daytime temperature in Killay in March is a cool 9°C (48°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 4 hours of sunshine a day in Killay during March.

  • 9°C maximum daytime temperature in March in Killay9
    9°C max day temperature
  • 4 hours of sunshine per day in March in Killay4
    4 hours of sunshine per day
  • 17 days with some rainfall in March in Killay17
    17 days with some rainfall
  • 3°C minimum night-time temperature in March in Killay3
    3°C min night temperature
  • 114 mm monthly rainfall in March in Killay114
    114 mm of monthly rainfall

On average 114 mm (4.5 inches) of rain normally falls in Killay during March with rain falling on 17 days of the month.

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Killay weather in April

The average maximum daytime temperature in Killay in April is a cool 12°C (54°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 6 hours of sunshine a day in Killay during April.

  • 12°C maximum daytime temperature in April in Killay12
    12°C max day temperature
  • 6 hours of sunshine per day in April in Killay6
    6 hours of sunshine per day
  • 14 days with some rainfall in April in Killay14
    14 days with some rainfall
  • 4°C minimum night-time temperature in April in Killay4
    4°C min night temperature
  • 84 mm monthly rainfall in April in Killay84
    84 mm of monthly rainfall

On average 84 mm (3.3 inches) of rain normally falls in Killay during April with rain falling on 14 days of the month.

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Killay weather in May

The average maximum daytime temperature in Killay in May is a comfortable 15°C (59°F), while the average minimum night-time temperature is a cold 7°C (45°F). You can expect on average 7 hours of sunshine a day in Killay during May.

  • 15°C maximum daytime temperature in May in Killay15
    15°C max day temperature
  • 7 hours of sunshine per day in May in Killay7
    7 hours of sunshine per day
  • 13 days with some rainfall in May in Killay13
    13 days with some rainfall
  • 7°C minimum night-time temperature in May in Killay7
    7°C min night temperature
  • 79 mm monthly rainfall in May in Killay79
    79 mm of monthly rainfall

On average 79 mm (3.1 inches) of rain normally falls in Killay during May with rain falling on 13 days of the month.

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Killay weather in June

The average maximum daytime temperature in Killay in June is a comfortable 17°C (63°F), while the average minimum night-time temperature is a cool 10°C (50°F). You can expect on average 7 hours of sunshine a day in Killay during June.

  • 17°C maximum daytime temperature in June in Killay17
    17°C max day temperature
  • 7 hours of sunshine per day in June in Killay7
    7 hours of sunshine per day
  • 14 days with some rainfall in June in Killay14
    14 days with some rainfall
  • 10°C minimum night-time temperature in June in Killay10
    10°C min night temperature
  • 97 mm monthly rainfall in June in Killay97
    97 mm of monthly rainfall

On average 97 mm (3.8 inches) of rain normally falls in Killay during June with rain falling on 14 days of the month.

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Killay weather in July

The average maximum daytime temperature in Killay in July is a comfortable 20°C (68°F), while the average minimum night-time temperature is a cool 12°C (54°F). You can expect on average 6 hours of sunshine a day in Killay during July.

  • 20°C maximum daytime temperature in July in Killay20
    20°C max day temperature
  • 6 hours of sunshine per day in July in Killay6
    6 hours of sunshine per day
  • 13 days with some rainfall in July in Killay13
    13 days with some rainfall
  • 12°C minimum night-time temperature in July in Killay12
    12°C min night temperature
  • 86 mm monthly rainfall in July in Killay86
    86 mm of monthly rainfall

On average 86 mm (3.4 inches) of rain normally falls in Killay during July with rain falling on 13 days of the month.

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Killay weather in August

The average maximum daytime temperature in Killay in August is a comfortable 19°C (66°F), while the average minimum night-time temperature is a cool 12°C (54°F). You can expect on average 6 hours of sunshine a day in Killay during August.

  • 19°C maximum daytime temperature in August in Killay19
    19°C max day temperature
  • 6 hours of sunshine per day in August in Killay6
    6 hours of sunshine per day
  • 15 days with some rainfall in August in Killay15
    15 days with some rainfall
  • 12°C minimum night-time temperature in August in Killay12
    12°C min night temperature
  • 124 mm monthly rainfall in August in Killay124
    124 mm of monthly rainfall

On average 124 mm (4.9 inches) of rain normally falls in Killay during August with rain falling on 15 days of the month.

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Killay weather in September

The average maximum daytime temperature in Killay in September is a comfortable 17°C (63°F), while the average minimum night-time temperature is a cool 10°C (50°F). You can expect on average 5 hours of sunshine a day in Killay during September.

  • 17°C maximum daytime temperature in September in Killay17
    17°C max day temperature
  • 5 hours of sunshine per day in September in Killay5
    5 hours of sunshine per day
  • 16 days with some rainfall in September in Killay16
    16 days with some rainfall
  • 10°C minimum night-time temperature in September in Killay10
    10°C min night temperature
  • 131 mm monthly rainfall in September in Killay131
    131 mm of monthly rainfall

On average 131 mm (5.2 inches) of rain normally falls in Killay during September with rain falling on 16 days of the month.

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Killay weather in October

The average maximum daytime temperature in Killay in October is a comfortable 14°C (57°F), while the average minimum night-time temperature is a cool 8°C (46°F). You can expect on average 3 hours of sunshine a day in Killay during October.

  • 14°C maximum daytime temperature in October in Killay14
    14°C max day temperature
  • 3 hours of sunshine per day in October in Killay3
    3 hours of sunshine per day
  • 19 days with some rainfall in October in Killay19
    19 days with some rainfall
  • 8°C minimum night-time temperature in October in Killay8
    8°C min night temperature
  • 157 mm monthly rainfall in October in Killay157
    157 mm of monthly rainfall

On average 157 mm (6.2 inches) of rain normally falls in Killay during October with rain falling on 19 days of the month.

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Killay weather in November

The average maximum daytime temperature in Killay in November is a cool 10°C (50°F), while the average minimum night-time temperature is a cold 4°C (39°F). You can expect on average 2 hours of sunshine a day in Killay during November.

  • 10°C maximum daytime temperature in November in Killay10
    10°C max day temperature
  • 2 hours of sunshine per day in November in Killay2
    2 hours of sunshine per day
  • 20 days with some rainfall in November in Killay20
    20 days with some rainfall
  • 4°C minimum night-time temperature in November in Killay4
    4°C min night temperature
  • 167 mm monthly rainfall in November in Killay167
    167 mm of monthly rainfall

On average 167 mm (6.6 inches) of rain normally falls in Killay during November with rain falling on 20 days of the month.

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Killay weather in December

The average maximum daytime temperature in Killay in December is a cool 8°C (46°F), while the average minimum night-time temperature is a cold 3°C (37°F). You can expect on average 2 hours of sunshine a day in Killay during December.

  • 8°C maximum daytime temperature in December in Killay8
    8°C max day temperature
  • 2 hours of sunshine per day in December in Killay2
    2 hours of sunshine per day
  • 20 days with some rainfall in December in Killay20
    20 days with some rainfall
  • 3°C minimum night-time temperature in December in Killay3
    3°C min night temperature
  • 169 mm monthly rainfall in December in Killay169
    169 mm of monthly rainfall

On average 169 mm (6.7 inches) of rain normally falls in Killay during December with rain falling on 20 days of the month.

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