Noirmoutier en l'Île, France

CLOUD COVER

3%

SEEING

1.7"

TRANSPARENCY

0.5 /1

WIND

5 km/h

HUMIDITY

75 %

TEMPERATURE

4 °C

MOON

moonphase

NOT VISIBLE

VISIBLE

PHASE:

Waning Gibbous Moon

ILLUMINATION:

99%

MOONRISE:

MOONSET:

PLANETS (LOCAL TIME)

mercury

Mercury

NOT VISIBLE

VISIBLE

venus

Venus

NOT VISIBLE

VISIBLE

mars

Mars

NOT VISIBLE

VISIBLE

jupiter

Jupiter

NOT VISIBLE

VISIBLE

saturn

Saturn

NOT VISIBLE

VISIBLE

uranus

Uranus

NOT VISIBLE

VISIBLE

neptune

Neptune

NOT VISIBLE

VISIBLE

* Happens next day

INTERPRETING FORECAST

The weather model is based on neural network/ML model by OpenWeather (TM), for more information click here. the cloud cover, wind and humidity data is updated around 01:00, 07:00, 13:00, and 19:00 UTC. The seeing and transparency data are updated every 3 hours. An optimal forecast for an evening of observation is indicated by the green color. "Tonight's Forecast" are calculated in relation to the forecasts of 0h, 1h and 2h.

CLOUD COVER

Cloud cover, no need to explain I think.

SEEING

The seeing corresponds to the size of a star seen on a photo or in an eyepiece. The lower this value is, the more details can be seen especially on the planets and the Moon.The seeing is expressed in seconds of arc ("). The model takes into account the movements of fluid particles in the atmosphere as well as their density. The seeing calculation is experimental. Remarks are welcome to try to improve the model and consequently the forecast.

TRANSPARENCY

The higher the value, the less bright the stars. It is expressed in magnitude per air mass. The model takes into account the humidity, temperature and the amount of ozone. The higher the humidity, the more the stars are extinguished, so the extinction value is high.

WIND

It’s the horizontal wind speed calculated for a height of 10 meters above the ground. This speed is expressed in km/h.

HUMIDITY

Is the relative humidity of the air calculated for a height of 2 meters above the ground. It is expressed in %.