Treharris (Merthyr Tydfil) last 24 hours weather
Wednesday (17 December 2025)
| 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 | |
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Temperature
°C
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| Temperature in degrees Celsius |
1.0°
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1.4°
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1.1°
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1.8°
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4.7°
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6.6°
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6.6°
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8.9°
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8.6°
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8.4°
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8.0°
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8.8°
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9.1°
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10.0°
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10.2°
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10.8°
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10.8°
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11.0°
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11.8°
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12.1°
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12.3°
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12.0°
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11.9°
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11.9°
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Wind direction and speed
mph
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| Wind direction and speed in miles per hour |
ENE
3
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NE
3
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N
1
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NE
1
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SSW
7
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S
8
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SSE
9
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SSW
13
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S
12
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S
9
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SSE
7
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S
9
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S
10
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S
10
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S
12
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S
17
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S
15
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S
16
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S
14
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S
15
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SSW
22
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S
18
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SSW
18
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SW
17
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| Wind gust in miles per hour | 4 | 4 | 4 | 4 | 11 | 11 | 16 | 20 | 18 | 18 | 16 | 13 | 16 | 18 | 22 | 31 | 29 | 27 | 29 | 25 | 36 | 34 | 29 | 34 |
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Visibility
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| Visibility | G | VG | G | G | E | E | E | E | VG | VG | M | M | M | E | VG | E | E | E | E | E | G | E | VG | G |
| Humidity | 96% | 97% | 97% | 97% | 98% | 86% | 89% | 77% | 81% | 90% | 93% | 94% | 93% | 89% | 89% | 84% | 86% | 87% | 84% | 82% | 83% | 87% | 89% | 91% |
| Pressure in hectopascals | 1,016 | 1,016 | 1,016 | 1,016 | 1,015 | 1,015 | 1,014 | 1,014 | 1,014 | 1,014 | 1,014 | 1,013 | 1,012 | 1,011 | 1,010 | 1,009 | 1,008 | 1,008 | 1,007 | 1,006 | 1,005 | 1,005 | 1,005 | 1,005 |
Thursday (18 December 2025)
| 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 | |
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| Weather symbol |
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Temperature
°C
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| Temperature in degrees Celsius |
11.1°
|
10.9°
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10.7°
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10.7°
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10.3°
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10.4°
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10.4°
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9.4°
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9.8°
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9.5°
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9.5°
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9.4°
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9.4°
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9.4°
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9.2°
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9.4°
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9.1°
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9.2°
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9.8°
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10.3°
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9.8°
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9.5°
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8.5°
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8.8°
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Wind direction and speed
mph
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| Wind direction and speed in miles per hour |
W
13
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W
13
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W
7
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W
10
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WSW
10
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SSW
6
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SSW
6
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SSE
4
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SE
5
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ESE
5
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ENE
4
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E
6
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E
5
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E
6
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E
4
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NE
5
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N
3
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W
10
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WSW
14
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WSW
23
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W
15
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W
17
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WNW
17
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W
14
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| Wind gust in miles per hour | 27 | 20 | 16 | 13 | 13 | 13 | 9 | 9 | 13 | 13 | 11 | 13 | 11 | 11 | 9 | 9 | 9 | 16 | 25 | 34 | 34 | 29 | 27 | 22 |
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Visibility
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| Visibility | G | G | G | G | G | G | G | G | G | VG | G | M | P | M | M | G | G | G | VG | VG | VG | G | VG | VG |
| Humidity | 96% | 96% | 95% | 92% | 92% | 92% | 90% | 93% | 94% | 92% | 93% | 96% | 98% | 98% | 98% | 98% | 98% | 98% | 93% | 86% | 88% | 82% | 84% | 76% |
| Pressure in hectopascals | 1,005 | 1,006 | 1,006 | 1,006 | 1,006 | 1,006 | 1,006 | 1,005 | 1,005 | 1,004 | 1,004 | 1,002 | 1,000 | 998 | 997 | 995 | 996 | 997 | 998 | 1,000 | 1,001 | 1,003 | 1,004 | 1,006 |
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Location Details
Location: 51.665, -3.305
Altitude:
169m above sea level