8 to 17°C
temperature
2289 hours
sunshine per day
686 mm
rain
143 days
dry
219 days
rain
3 days
snow

Climate of Trefin

Trefin has a oceanic climate. There is rainfall during all months of the year. The average annual temperature for Trefin is 13° degrees and there is about 685 mm of rain in a year. It is dry for 110 days a year with an average humidity of 82% 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 17°C
  • Night:the average nighttime temperature is between 6°C and 15°C
  • Rain: it rains 219 days and there is a total of approximately 686 mm rainfall
  • Snow: it snows an average of 3 days per year
  • Sun hours: throughout the year there are 2289 sun hours
Maximum temperature: between 8°C and 17°C
Warmest month: 17°C in July
Coldest month: 8°C in February
Night temperature: between 6°C and 15°C
Dry days: 143 days
Days with rain: 219 days
Days with snow: 3 days
Total rain sum: 686 mm
Hours of sunshine: 2289 hours

Temperature graph

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

Precipitation graph

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

Climate table of Trefin

In this climate table you can see at a glance what the average weather per month is for Trefin. 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 Trefin might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) 9 8 9 11 13 16 17 17 16 14 12 10
Night temp. (°C) 6 6 6 8 10 13 15 15 14 12 10 8
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 71 46 49 36 35 39 47 56 48 79 96 84
Days with rain 20 17 17 16 15 14 18 19 18 20 23 22
Days with snow 1 1 - - - - - - - - - 1
Dry days 10 10 14 14 16 16 13 12 12 11 7 8
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 4 4 6 9 8 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 2 3 4 4 4 5 4 4 3 2

Best time to visit Trefin

The best time to visit Trefin in Wales is from June through September. In this period you have a pleasant temperature and little precipitation. The highest average temperature in Trefin is 17°C in July and the lowest is 8°C in February.

Climate of Trefin by month

What is the average climate in a given month for Trefin? 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.

Trefin weather experiences

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