8 to 16°C
temperature
2261 hours
sunshine per day
635 mm
rain
136 days
dry
226 days
rain
3 days
snow

Climate of Holy Island

The island Holy Island has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Holy Island is 12° degrees and there is about 635 mm of rain in a year. It is dry for 103 days a year with an average humidity of 81% and an UV-index of 3.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between 8°C and 16°C
  • Night:the average nighttime temperature is between 6°C and 15°C
  • Rain: it rains 226 days and there is a total of approximately 635 mm rainfall
  • Snow: it snows an average of 3 days per year
  • Sun hours: throughout the year there are 2261 sun hours
Maximum temperature: between 8°C and 16°C
Warmest month: 16°C in July
Coldest month: 8°C in January
Night temperature: between 6°C and 15°C
Dry days: 136 days
Days with rain: 226 days
Days with snow: 3 days
Total rain sum: 635 mm
Hours of sunshine: 2261 hours

Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Holy Island.

Precipitation graph

This graph shows the average amount of rainfall per month for Holy Island.

Climate table of Holy Island

In this climate table you can see at a glance what the average weather per month is for Holy Island. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Holy Island might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) 8 8 8 10 12 15 16 16 16 14 11 10
Night temp. (°C) 6 6 6 8 10 13 14 15 14 12 9 8
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 58 43 49 28 36 35 50 59 54 66 81 76
Days with rain 21 17 17 15 16 15 19 23 19 20 22 22
Days with snow 1 1 - - - - - - - - - 1
Dry days 9 10 14 15 15 15 12 8 11 11 8 8
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 4 4 6 8 9 9 8 8 7 4 4 4
Wind force (Bft) 5 4 4 4 4 3 3 4 4 4 5 5
UV-index 2 2 3 4 4 4 4 4 4 3 3 3

Best time to visit Holy Island

The best time to visit Holy Island, Wales is in September and September. In this period you have a mild temperature and little precipitation. On the island of Holy Island, the warmest month is July with 16°C and the coldest is January with 8°C.

Climate of Holy Island by month

What is the average climate in a given month for Holy Island? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

Holy Island weather experiences

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