Harpenden Weather Forecast for
Su, 21 April
1:00
4:00
7:00
10:00
13:00
16:00
19:00
22:00
Air temperature, °C
+2
+2
+3
+5
+8
+10
+10
+6
Real feel, °C
+2
0
+1
+3
+6
+8
+8
+5
Average wind speed, m/s
1
2
2
3
4
5
4
3
Wind gusts, m/s
5
3
4
6
8
8
8
7
Wind direction
NE
NE
NE
NE
NE
NE
NE
N
Birch pollen, points
0
0
0
0
0
0
0
0
Grass pollen, points
—
—
—
—
—
—
—
—
Ragweed pollen, points
—
—
—
—
—
—
—
—
Precipitation in liquid equivalent, mm
0
0
0
0.1
0
0
0
0
Falling snow, cm
—
—
—
—
—
—
—
—
Snow depth, cm
0
0
0
0
0
0
0
0
Pressure, mmHg
763
763
764
764
764
763
763
764
Relative humidity, %
79
82
82
73
61
54
51
67
UV Index, points
0
0
1
2
3
3
1
0
Geomagnetic activity, Kp-index
2
2
2
2
2
2
2
2
Sun and Moon
Daylight hours: 14 h 18 min
Sunrise — 5:51
Sunset — 20:09
The day will 11 minutes longer than today
Waxing Moon: 94%
Moonrise — 16:26 (20 April)
Moonset — 5:11
Full Moon — 24 April, in 2 days