Farming weather · Rennes

Farming weather — Rennes

Rain, ET₀, soil moisture, frost, wind and spraying windows over 15 days.

Total rain 15 d
4 mm
Total ET₀ 15 d
78 mm
Water balance
-74 mm
Degree-days (base 6 °C)
218 °J

15 days — farming indices

DayMin / MaxRainWindET₀SoilIndices
Mon 27 Jul +12° / +28° 22 km/h 5,6 mm 8 %
Tue 28 Jul +13° / +36° 15 km/h 6,0 mm 7 % 🌿 Spraying
Wed 29 Jul +17° / +37° 26 km/h 7,2 mm 7 %
Thu 30 Jul +13° / +31° 28 km/h 5,3 mm 7 %
Fri 31 Jul +14° / +27° 25 km/h 6,2 mm 7 %
Sat 1 Aug +11° / +28° 26 km/h 5,6 mm 7 %
Sun 2 Aug +12° / +31° 27 km/h 6,0 mm 7 %
Mon 3 Aug +14° / +30° 22 km/h 5,7 mm 6 %
Tue 4 Aug +18° / +22° 0,3 mm 11 km/h 5,8 mm 6 % 🌿 Spraying
Wed 5 Aug +16° / +35° 17 km/h 4,7 mm 🌿 Spraying
Thu 6 Aug +18° / +26° 1,0 mm 29 km/h 4,6 mm
Fri 7 Aug +16° / +25° 2,7 mm 37 km/h 5,0 mm
Sat 8 Aug +12° / +26° 26 km/h 4,9 mm
Sun 9 Aug +12° / +24° 16 km/h 5,2 mm 🌿 Spraying

Other forecasts for Rennes

Understanding the indices

Over the next 15 days in Rennes, about 4 mm of rain is expected against 78 mm of evapotranspiration — a water deficit of 74 mm (irrigation may be needed). Soil moisture averages around 7%. Growing degree-days add up to roughly 218 °C·day.

Spraying window: dry day (< 1 mm) with light wind (< 19 km/h). ET₀: reference evapotranspiration (FAO-56). Water balance: rain − ET₀ (negative = deficit). Degree-days: sum of temperature base 6 °C. Soil: surface soil moisture. Sources: ECMWF/GFS + Open-Meteo.

Official weather data from Météo-France (French Meteorological and Hydrological Institute) · Météo-France · French Museum of Natural History · Bison Futé
Updated: 23:09