Pentre-llyn-cymmer, Saturday, 8 August, 18:16
Overcast. Feels like 21°C. High 24°C, low 9°C.
Pentre-llyn-cymmer, Sunday, 9 August
Overcast. High 22°C, low 9°C.
Pentre-llyn-cymmer, Monday, 10 August
Overcast. High 19°C, low 8°C.
Pentre-llyn-cymmer, Tuesday, 11 August
Clear sky. High 27°C, low 8°C.
Pentre-llyn-cymmer, Wednesday, 12 August
Overcast. High 30°C, low 14°C.
Pentre-llyn-cymmer, Thursday, 13 August
Clear sky. High 29°C, low 16°C.
Pentre-llyn-cymmer, Friday, 14 August
Light rain. High 22°C, low 14°C.
Pentre-llyn-cymmer, Saturday, 15 August
Overcast. High 21°C, low 11°C.
Pentre-llyn-cymmer, Sunday, 16 August
Overcast. High 21°C, low 13°C.
Pentre-llyn-cymmer, Monday, 17 August
Light rain. High 16°C, low 10°C.
Pentre-llyn-cymmer, Tuesday, 18 August
Light rain. High 15°C, low 9°C.
Pentre-llyn-cymmer, Wednesday, 19 August
Overcast. High 20°C, low 11°C.
Pentre-llyn-cymmer, Thursday, 20 August
Light rain. High 17°C, low 11°C.
Pentre-llyn-cymmer, Friday, 21 August
Light rain. High 15°C, low 10°C.
Pentre-llyn-cymmer, Saturday, 22 August
Light rain. High 15°C, low 11°C.
Pentre-llyn-cymmer, Sunday, 23 August
Light rain. High 15°C, low 10°C.
The first 16 days come from weather models — highly reliable for the first 3–5 days, gradually less so after that. Days 17 to 30 for Pentre-llyn-cymmer are built from climate averages over the last 60 years, so they show typical weather for those dates rather than a specific forecast.
We compare the forecast with the climate average for exactly the same calendar days, calculated from 60 years of observations. The difference shows how the coming month compares with a typical one.
These are real historical extremes recorded in Pentre-llyn-cymmer since 1960: the highest and lowest temperature for each calendar date, with the year it happened.
The forecast portion refreshes every hour. The climate portion is based on long-term data and stays stable.