Temperature
CH18,15°C
- min
- 5,07
- max
- 15,50
- Δ/h
- −0,94
SHT4x, in the shield. Dew point 6,79 °C.
The balcony, right now
RUN 2 minutes ago 21.10.2026 22:29
6,0 °C
8,0 °C
10,0 °C
12,0 °C
14,0 °C
24 h ago
now
Measured inside the radiation shield. The shade estimate subtracts the modelled heating of the shield. Compare with Mikulka.
Channels
last 24 h · 10 min windows · min / max over 24 h
Humidity
CH291,17%
- min
- 65,67
- max
- 92,79
- Δ/h
- −0,15
SHT4x, relative humidity.
Pressure, MSL
CH31 012,16hPa
- min
- 1 006,49
- max
- 1 012,41
- Δ/h
- +1,12
BMP280 indoors, reduced to sea level.
Noise, LAeq
CH460,5dB(A)
- min
- 40,9
- max
- 71,1
- Δ/h
- −1,6
INMP441 in the shield. Rain heard now.
Light
AUX1lx
- min
- 0
- max
- 2 248
- Δ/h
- +0
VEML7700 in the shield, behind the louvers.
Measuring the air beyond the shield
How closely can this balcony station estimate outdoor air temperature after correcting for heating inside its radiation shield?
An ESP32 on an east-facing balcony in Plzeň records temperature and humidity with an SHT4x in a radiation shield, and pressure with a BMP280 indoors. It samples every 30 seconds and sends a ten-minute summary. Light and sound are recorded alongside these measurements.
The graphs show the original sensor readings alongside a shade estimate from a correction calibrated for this shield and its position on the balcony. The estimate appears only when a valid calibration and enough light history are available.
ČHMÚ Plzeň-Mikulka, about 3.5 km away, is the professional temperature reference for developing and evaluating the correction. Differences in location and microclimate remain part of that comparison.
Station status
ACQ RUN
report 21.10.2026 22:30
RSSI −67 dBm
uptime 21 d 8 h
buffered 1
failures 0
fw 4.0.0
Station report
Where it is
Plzeň-Slovany · within 800 m