Cardiff, Wales, United Kingdom: What to pack, what to wear, and when to go [2018]

Traveling to Cardiff, Wales, United Kingdom? If you're planning to go to Cardiff, here is some important information about when to go, what to wear, and what to pack:

When to go to Cardiff, Wales, United Kingdom

Based on the climate and weather in Cardiff, the best time to go is August. See below for details.

What to wear/what to pack for Cardiff, Wales, United Kingdom by month

January

January in Cardiff is cold, extremely rainy and somewhat hazy. The average overnight temperatures in the area are in the high 30s F (single digits C).

It tends to rain most days. But the colder weather doesn't bring low humidity, which is in the 80% to 90% range on average.

What to wear/what to pack:

  • Jacket or coat
  • Standard footwear
  • Waterproof luggage
  • Light gloves or mittens
  • Socks
  • Umbrella
  • Warm pants or jeans
  • Rain coat
  • Waterproof footwear
  • Fleeces

February

If you vacation in Cardiff during February, you are likely to find that it is brisk, very rainy and very hazy. Temperatures tend to hover around the high 40s F (single digits C) during the day, while at night they can dip into the high 30s F (single digits C).

Humidity is generally between 70 and 80% during the day. In terms of precipitation, you can expect it to rain about half of the time.

What to wear/what to pack:

  • Waterproof footwear
  • Standard footwear
  • Rain coat
  • Umbrella
  • Fleeces
  • Socks
  • Jacket or coat
  • Waterproof luggage
  • Light gloves or mittens
  • Warm pants or jeans

March

If you vacation in Cardiff during March, you are likely to find that it is pretty cool, extremely rainy and somewhat hazy. Temperatures tend to hover around the low 50s F (low 10s C) during the day, while at night they can dip into the low 40s F (single digits C).

Humidity is generally between 70 and 80% during the day. In terms of precipitation, you can expect it to rain most days.

What to wear/what to pack:

  • Umbrella
  • Waterproof footwear
  • Light jacket or fleece
  • Socks
  • Long skirts
  • Rain coat
  • Waterproof luggage
  • Standard footwear
  • Dresses
  • Long sleeve shirts or blouses
  • Pants or jeans

April

In April, Cardiff is chilly, very rainy and very hazy. Temperatures routinely are in the 50s F (low 10s C) and once in a while jump into the low 60s F (mid 10s C) range. At night, lows are in the low 40s F (single digits C).

This is also a rainy time for Cardiff, with more than half of the days of the month having rain. In April, humidity reaches as high as 70%.

What to wear/what to pack:

  • Waterproof luggage
  • Socks
  • Waterproof footwear
  • Long skirts
  • Umbrella
  • Long sleeve shirts or blouses
  • Light jacket or fleece
  • Pants or jeans
  • Rain coat
  • Standard footwear
  • Dresses

May

Traveling to Cardiff in May, you will notice that it is chilly, very rainy and very hazy. Expect it to rain about two thirds of the time. Daytime temperatures are in the low 60s F (high 10s C).

What to wear/what to pack:

  • Umbrella
  • Pants or jeans
  • Waterproof luggage
  • Light jacket or fleece
  • Long sleeve shirts or blouses
  • Waterproof footwear
  • Rain coat
  • Socks
  • Dresses
  • Standard footwear
  • Long skirts

June

If you vacation in Cardiff during June, you are likely to find that it is mild, very rainy and very hazy. Temperatures tend to hover around the high 60s F (low 20s C) during the day, while at night they can dip into the 50s F (low 10s C).

Humidity is generally between 60 and 70% during the day. In terms of precipitation, you can expect it to rain about two thirds of the time.

What to wear/what to pack:

  • Dresses
  • Long sleeve shirts or blouses
  • Socks
  • Rain coat
  • Umbrella
  • Pants or jeans
  • Waterproof footwear
  • Long skirts
  • Light jacket or fleece
  • Waterproof luggage
  • Standard footwear

July

If you visit Cardiff during July, you are likely to find that it is mild, very rainy and very hazy. Temperatures tend to hover around the low 70s F (low 20s C) during the day, while at night they can dip into the high 50s F (mid 10s C).

Humidity is generally between 60 and 70% during the day. In terms of precipitation, you can expect it to rain about two thirds of the time.

What to wear/what to pack:

  • If you're going to the beach, bathing suits, swimwear
  • Sandals
  • Sunscreen lotion
  • Dresses
  • Waterproof luggage
  • Shorts or short pants
  • Light footwear
  • Long and short sleeve shirts
  • Umbrella
  • Rain coat
  • Waterproof footwear
  • Skirts

August

If you vacation in Cardiff during August, you are likely to find that it is balmy, very rainy and somewhat hazy. Temperatures tend to hover around the low 70s F (low 20s C) during the day, while at night they can dip into the high 50s F (mid 10s C).

Humidity is generally between 60 and 70% during the day. In terms of precipitation, you can expect it to rain about two thirds of the time.

What to wear/what to pack:

  • If you're going to the beach, bathing suits, swimwear
  • Skirts
  • Waterproof luggage
  • Light footwear
  • Shorts or short pants
  • Umbrella
  • Sunscreen lotion
  • Long and short sleeve shirts
  • Waterproof footwear
  • Dresses
  • Rain coat
  • Sandals

September

In September, Cardiff is mild, very rainy and somewhat hazy. Temperatures routinely are in the 60s F (high 10s C) and once in a while jump into the low 70s F (low 20s C) range. At night, lows are in the 50s F (low 10s C).

This is also a rainy time for Cardiff, with more than half of the days of the month having rain. In September, humidity reaches as high as 80%.

What to wear/what to pack:

  • Long sleeve shirts or blouses
  • Long skirts
  • Socks
  • Waterproof luggage
  • Pants or jeans
  • Umbrella
  • Standard footwear
  • Dresses
  • Rain coat
  • Waterproof footwear
  • Light jacket or fleece

October

October in Cardiff is crisp, very rainy and somewhat hazy. The average overnight temperatures in the area are in the high 40s F (single digits C).

It tends to rain most days. But the colder weather doesn't bring low humidity, which is in the 70% to 80% range on average.

What to wear/what to pack:

  • Socks
  • Light jacket or fleece
  • Long skirts
  • Long sleeve shirts or blouses
  • Standard footwear
  • Rain coat
  • Waterproof footwear
  • Dresses
  • Waterproof luggage
  • Pants or jeans
  • Umbrella

November

November in Cardiff is cold, very rainy and somewhat hazy. The average overnight temperatures in the area are in the low 40s F (single digits C), with a few days below 32 F (single digits C).

It tends to rain most days. But the colder weather doesn't bring low humidity, which is in the 80% to 90% range on average.

What to wear/what to pack:

  • Waterproof luggage
  • Rain coat
  • Long sleeve shirts or blouses
  • Umbrella
  • Long skirts
  • Pants or jeans
  • Standard footwear
  • Light jacket or fleece
  • Dresses
  • Socks
  • Waterproof footwear

December

December can be very chilly, very rainy and somewhat hazy. Temperatures average in the high 40s F (single digits C) during the day. It rains most days.

What to wear/what to pack:

  • Fleeces
  • Standard footwear
  • Waterproof luggage
  • Rain coat
  • Socks
  • Jacket or coat
  • Warm pants or jeans
  • Light gloves or mittens
  • Waterproof footwear
  • Umbrella

Year-round what to wear/what to pack for Cardiff, Wales, United Kingdom

Here are some general tips on what to wear in Cardiff, as well as several items to remember to pack when traveling there.

  • A plug adadpter that supports outlet types G
  • A SIM card that works in Cardiff
  • If you plan to visit a church, make sure to bring appropriate clothing
  • Theft can be a problem, so pack theft protection, including locks for luggage and a money belt or pouch
  • Appropriate museum wear
  • Bicycle friendly attire, if you plan on biking anywhere

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