– Lat/Long: 53.15° N 3.95° W
Pen yr Helgi Du
Weather Forecast, United KingdomIssued: 12 am Tue 18 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 12 am Tue 18 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 12 am Tue 18 Aug Local Time
Updates in:
Update imminent hr min s
2 Pen yr Helgi Du Elevations: 2 Forecast Elevations: Days 1–4 Weather SummaryModerate rain (total 15mm), heaviest on Mon night. Very mild (max 14°C on Mon night, min 8°C on Thu afternoon). Winds decreasing (strong winds from the W on Mon night, light winds from the WNW by Wed night). | Days 5–7 Weather SummaryLight rain (total 5mm), mostly falling on Fri afternoon. Mild temperatures (max 9°C on Fri morning, min 7°C on Thu night). Wind will be generally light. | |||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  | | | | | | | | | | | | |
mod. rain | light rain | light rain | rain shwrs | rain shwrs | rain shwrs | rain shwrs | rain shwrs | rain shwrs | rain shwrs | light rain | rain shwrs | rain shwrs | rain shwrs | rain shwrs | rain shwrs | |
Cloud base (m) | 350 | 150 | 550 | 350 | 750 | 450 | 800 | 500 | 100 | 700 | 1550 | 1650 | 1950 | 1750 | 500 | |
km/h | ||||||||||||||||
 |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 7 | 0.3 | 0.2 | 1.7 | 1.5 | 0.4 | 0.3 | 1.9 | 1.2 | 1.2 | 0.6 | 1.4 | 0.7 | 0.4 | 0.2 | 0.3 |
max °C | 14 | 11 | 11 | 9 | 10 | 10 | 10 | 10 | 8 | 8 | 9 | 9 | 8 | 9 | 9 | 8 |
min °C | 12 | 11 | 11 | 9 | 9 | 10 | 9 | 10 | 8 | 7 | 8 | 9 | 7 | 8 | 9 | 7 |
chill °C | 9 | 8 | 8 | 5 | 5 | 6 | 6 | 8 | 4 | 5 | 7 | 8 | 6 | 6 | 7 | 3 |
Freezing level m | 3800 | 3750 | 3300 | 2400 | 2250 | 2400 | 2450 | 2350 | 2300 | 2100 | 2000 | 2050 | 2050 | 2100 | 2200 | 2250 |
 | — | 6:00 | — | — | 6:01 | — | — | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — |
 | — | — | 8:37 | — | — | 8:35 | — | — | 8:32 | — | — | 8:30 | — | — | 8:29 | — |
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Pen yr Helgi Du Weather (Days 0-3):
The weather forecast for Pen yr Helgi Du is: Moderate rain (total 15mm), heaviest on Mon night. Very mild (max 14°C on Mon night, min 8°C on Thu afternoon). Winds decreasing (strong winds from the W on Mon night, light winds from the WNW by Wed night).
Pen yr Helgi Du Weather (Days 3-6):
Light rain (total 5mm), mostly falling on Fri afternoon. Mild temperatures (max 9°C on Fri morning, min 7°C on Thu night). Wind will be generally light.
This table gives the weather forecast for Pen yr Helgi Du at the specific elevation of 833 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Pen yr Helgi Du. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of United Kingdom.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
Caernarfon Airport |  | ||||
SHIP7549 | |||||
SHIP4122 | |||||
Valley RAF Airport | | ||||
SHIP9280 |
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.
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