Harpenden Weather Forecast for
Su, 5 May
1:00
4:00
7:00
10:00
13:00
16:00
19:00
22:00
Air temperature, °C
+11
+10
+10
+12
+15
+15
+14
+11
Real feel, °C
+11
+10
+8
+12
+15
+15
+13
+10
Average wind speed, m/s
1
1
3
5
6
7
5
2
Wind gusts, m/s
6
4
7
7
9
9
9
9
Wind direction
S
S
S
S
S
S
S
SE
Birch pollen, points
—
—
—
—
—
—
—
—
Grass pollen, points
—
—
—
—
—
—
—
—
Ragweed pollen, points
—
—
—
—
—
—
—
—
Precipitation in liquid equivalent, mm
0.8
1.8
0
0.1
0.1
0.1
0.1
0
Falling snow, cm
—
—
—
—
—
—
—
—
Snow depth, cm
—
—
—
—
—
—
—
—
Pressure, mmHg
747
746
745
745
746
747
746
747
Relative humidity, %
82
87
87
74
58
57
67
78
UV Index, points
0
0
2
4
5
5
2
0
Geomagnetic activity, Kp-index
3
3
3
3
3
3
3
3
Sun and Moon
Daylight hours: 15 h 9 min
Sunrise — 5:24
Sunset — 20:33
The day will 28 minutes longer than today
Waning Moon: 10%
Moonset — 15:42 (4 May)
Moonrise — 4:21
New Moon — 8 May, in 3 days