As of 23:33 BST

Weather in Llanllyfni

+16°

Llanllyfni, Saturday, 8 August, 23:33

Overcast. Feels like 16°C. High 25°C, low 11°C.

Pressure1015 mb

Wind5 mph SE

Humidity82%

Visibility6.2 mi

Dew point13°C

Detailed hourly forecast

Sun, 09+12 ° /23 °

+23 °

Llanllyfni, Sunday, 9 August

Overcast. High 23°C, low 12°C.

Pressure1014 mb

Wind7 mph SW

Humidity65%

Visibility6.2 mi

Dew point12°C

Mon, 10+11 ° /21 °

0.1

+21 °

Llanllyfni, Monday, 10 August

Light rain. High 21°C, low 11°C.

Pressure1022 mb

Wind8 mph NW

Humidity56%

Visibility6.2 mi

Dew point8°C

Tue, 11+12 ° /24 °

+24 °

Llanllyfni, Tuesday, 11 August

Overcast. High 24°C, low 12°C.

Pressure1023 mb

Wind10 mph S

Humidity42%

Visibility6.2 mi

Dew point9°C

Wed, 12+16 ° /27 °

+27 °

Llanllyfni, Wednesday, 12 August

Overcast. High 27°C, low 16°C.

Pressure1022 mb

Wind6 mph S

Humidity34%

Visibility6.2 mi

Dew point7°C

Thu, 13+17 ° /27 °

+27 °

Llanllyfni, Thursday, 13 August

Overcast. High 27°C, low 17°C.

Pressure1019 mb

Wind6 mph NW

Humidity35%

Visibility—

Dew point9°C

Fri, 14+16 ° /23 °

+23 °

Llanllyfni, Friday, 14 August

Overcast. High 23°C, low 16°C.

Pressure1017 mb

Wind7 mph SE

Humidity71%

Visibility—

Dew point16°C

Sat, 15+13 ° /21 °

+21 °

Llanllyfni, Saturday, 15 August

Overcast. High 21°C, low 13°C.

Pressure1018 mb

Wind12 mph N

Humidity58%

Visibility—

Dew point11°C

Sun, 16+13 ° /18 °

0.2

+18 °

Llanllyfni, Sunday, 16 August

Light rain. High 18°C, low 13°C.

Pressure1019 mb

Wind7 mph NW

Humidity77%

Visibility—

Dew point13°C

Mon, 17+13 ° /18 °

8.9

+18 °

Llanllyfni, Monday, 17 August

Rain. High 18°C, low 13°C.

Pressure1010 mb

Wind13 mph S

Humidity98%

Visibility—

Dew point16°C

Tue, 18+13 ° /17 °

0.6

+17 °

Llanllyfni, Tuesday, 18 August

Light rain. High 17°C, low 13°C.

Pressure1015 mb

Wind14 mph W

Humidity70%

Visibility—

Dew point10°C

Wed, 19+13 ° /18 °

1.4

+18 °

Llanllyfni, Wednesday, 19 August

Light rain. High 18°C, low 13°C.

Pressure1014 mb

Wind13 mph W

Humidity63%

Visibility—

Dew point9°C

Thu, 20+11 ° /16 °

1.3

+16 °

Llanllyfni, Thursday, 20 August

Light rain. High 16°C, low 11°C.

Pressure1015 mb

Wind8 mph NW

Humidity79%

Visibility—

Dew point11°C

Fri, 21+10 ° /17 °

0.1

+17 °

Llanllyfni, Friday, 21 August

Light rain. High 17°C, low 10°C.

Pressure1016 mb

Wind12 mph N

Humidity56%

Visibility—

Dew point8°C

Sat, 22+10 ° /20 °

1.9

+20 °

Llanllyfni, Saturday, 22 August

Light rain. High 20°C, low 10°C.

Pressure1021 mb

Wind7 mph NE

Humidity61%

Visibility—

Dew point10°C

Sun, 23+12 ° /20 °

0.1

+20 °

Llanllyfni, Sunday, 23 August

Light rain. High 20°C, low 12°C.

Pressure1019 mb

Wind15 mph SW

Humidity58%

Visibility—

Dew point10°C

Questions about the month ahead

How accurate is a month-long forecast?

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 Llanllyfni are built from climate averages over the last 60 years, so they show typical weather for those dates rather than a specific forecast.

What does "above average" mean?

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.

Where do the 66-year records come from?

These are real historical extremes recorded in Llanllyfni since 1960: the highest and lowest temperature for each calendar date, with the year it happened.

How often is the 30-day forecast updated?

The forecast portion refreshes every hour. The climate portion is based on long-term data and stays stable.