University of Reading METFiDAS weather observations for 17 May 2026 at time 1530 UTC

These data are provided without any guarantee as to their accuracy.
From time to time errors may arise which we will endeavour to correct as quickly as possible.

Click here to see graphs of recent weather at the University of Reading.


CURRENT CONDITIONSEXTREMES and TOTALS since 0000 UTC
MaximumTime MinimumTime Total
UTC UTC

Temperature and humidity
Air temperature: ºC 12.3 16.1 1312 7.2 0426
Wet bulb temperature: ºC 9.1
Dew point bulb temp.: ºC 5.4
Vapour pressure: hPa 9.0
Note: The wet bulb, dew point and vapour pressure above are computed from air temperature and relative humidity
Relative humidity: % 63 97 0002 35 1329
Temperature change in 1 hour: degC -3.3
Wet bulb temperature: ºC 9.2 10.8 0929 7.2 0427
Note: The above wet bulb temperature is measured using a probe and wick

Surface temperatures (ºC)
Grass temperature 14.6 45.4 1222 1.8 0353
Concrete temperature 20.7 35.6 1222 7.7 0409
Bare soil temperature 17.5 34.4 1222 6.4 0353

Precipitation (mm)
Rainfall in past 5 minutes: 0.0
Rainfall in past hour: 0.2
Rainfall in past 3 hours: 0.2
Rainfall in past 6 hours: 0.2
Rainfall since 0000 UTC: 0.4

Soil temperatures under grass (ºC)
5 cm soil temperature: 16.2 16.2 1530 11.3 0535
10 cm soil temperature: 13.9 13.9 1530 11.4 0705
20 cm soil temperature: n/a n/a n/a
30 cm soil temperature: 11.8 11.9 0114 11.6 1105
50 cm soil temperature: n/a n/a n/a
100 cm soil temperature: 11.4 11.4 0001 11.4 0005

Lowest cloud base (ceilometer measurement)
Lowest cloud base in past 5 minutes: metres 1692
Lowest cloud base in past 5 minutes: feet 5551

Visibility and present weather (BIRAL SWS-250)
Visibility: metres 48956
Present weather Rain in last hour

Sunshine and irradiance
Sunshine in past 5 minutes: min 0.0
Sunshine since 0000 UTC: h 7.9
Total global solar irradiance: W/m2 138 1156 1106
Global solar irrad. since 0000 UTC: MJ/m2 18.11
Direct beam solar irradiance: W/m2 2 n/a
Diffuse solar irradiance: W/m2 140 n/a
Net irradiance: W/m2 -17 n/a n/a
Ground heat flux density: W/m2 14 n/a n/a
Shortwave upwelling irradiance: W/m2 37 n/a n/a
Shortwave downwelling irradiance: W/m2 140 n/a n/a
Longwave upwelling irradiance: W/m2 360 n/a n/a
Longwave downwelling irradiance: W/m2 351 n/a n/a

Pressure
Mean sea level pressure: hPa 1011.1 1011.1 1049 1008.3 0050
Pressure change in 1 hour: hPa +0.4
Pressure change in 3 hours: hPa +0.2

Wind
10-metre wind direction: 260
10-metre wind speed: m/s 2.9
Note: Wind speed and direction are 10-minute vector mean values
10-metre maximum 3-sec wind gust: m/s 5.7 9.6
2-metre average wind speed since 0000 UTC: m/s 1.9
10-metre average wind speed since 0000 UTC: m/s 2.5

Click here for the summary for yesterday from the University of Reading.