Thursday 5 November 2026

Mushrooms in Rosny-sur-Seine

Today, hedgehog mushrooms are the best bet around Rosny-sur-Seine (75/100, very favourable). Département: Yvelines · altitude 121 m.

Rosny-sur-Seine is a municipality (7 328 inhabitants), at an altitude of 121 m (département: Yvelines, 78). On Thursday 5 November 2026, conditions are favourable for: hedgehog mushrooms (75/100), black trumpets (72/100), parasol mushrooms (70/100) and wood blewits (68/100). For hedgehog mushrooms, conditions remain stable, with a maximum on Thursday 5 November 2026 (75/100). Terrain: likely trees around the municipality (sessile oak and birch), slightly acidic soil. Weather: 0 mm of rain fell over the last 8 days, 18 mm of rain is expected over the next 7 days, minimum temperatures range from 2 to 12 °C.

Open on the map

45/ 100

Ceps

Possible

21/ 100

Chanterelles

Unlikely

0/ 100

Morels

Unfavourable

75/ 100

Hedgehog mushrooms

Very favourable

72/ 100

Black trumpets

Favourable

44/ 100

Funnel chanterelles

Possible

68/ 100

Wood blewits

Favourable

39/ 100

Saffron milk caps

Possible

70/ 100

Parasol mushrooms

Favourable

8-day forecast

Ceps

45Thu 5

42Fri 6

36Sat 7

31Sun 8

29Mon 9

31Tue 10

32Wed 11

32Thu 12

Chanterelles

21Thu 5

19Fri 6

15Sat 7

9Sun 8

9Mon 9

13Tue 10

15Wed 11

16Thu 12

Morels

0Thu 5

0Fri 6

0Sat 7

0Sun 8

0Mon 9

0Tue 10

0Wed 11

0Thu 12

Hedgehog mushrooms

75Thu 5

75Fri 6

71Sat 7

66Sun 8

67Mon 9

73Tue 10

75Wed 11

75Thu 12

Black trumpets

72Thu 5

71Fri 6

70Sat 7

69Sun 8

68Mon 9

68Tue 10

67Wed 11

68Thu 12

Funnel chanterelles

44Thu 5

44Fri 6

40Sat 7

37Sun 8

37Mon 9

40Tue 10

43Wed 11

47Thu 12

Wood blewits

68Thu 5

67Fri 6

67Sat 7

64Sun 8

63Mon 9

64Tue 10

64Wed 11

65Thu 12

Saffron milk caps

39Thu 5

37Fri 6

34Sat 7

31Sun 8

30Mon 9

30Tue 10

30Wed 11

28Thu 12

Parasol mushrooms

70Thu 5

69Fri 6

63Sat 7

54Sun 8

53Mon 9

59Tue 10

64Wed 11

69Thu 12

Forests and soils around Rosny-sur-Seine

The terrain

Likely trees: sessile oak, birch
Soil: slightly acidic (pH 5.8), balanced
Slope: 6°

Habitat by species

Ceps	90	large forest of suitable host trees: sessile oak, pedunculate oak
Chanterelles	92	large forest of suitable host trees: sessile oak, birch, sweet chestnut
Morels	49	large forest of suitable host trees
Hedgehog mushrooms	62	large forest of suitable host trees: sessile oak
Black trumpets	87	large forest of suitable host trees: sessile oak, sweet chestnut, pedunculate oak
Funnel chanterelles	60	large forest, but tree species poorly suited to the funnel chanterelle
Wood blewits	88	large forest of suitable host trees: sessile oak, sweet chestnut, pedunculate oak
Saffron milk caps	21	large forest, but tree species poorly suited to the saffron milk cap
Parasol mushrooms	95	large forest of suitable host trees

Recent and forecast weather

Day	Min	Max	Rain	Air humidity	Soil moisture
Thu 29	2 °C	15 °C	0.0 mm	84 %	24 %
Fri 30	5 °C	14 °C	0.0 mm	81 %	23 %
Sat 31	5 °C	14 °C	0.0 mm	84 %	22 %
Sun 1	5 °C	13 °C	0.0 mm	84 %	20 %
Mon 2	6 °C	10 °C	0.1 mm	89 %	21 %
Tue 3	5 °C	9 °C	0.0 mm	84 %	21 %
Wed 4	5 °C	9 °C	0.0 mm	75 %	21 %
Thu 5 forecast	4 °C	10 °C	0.0 mm	81 %	20 %
Fri 6 forecast	5 °C	13 °C	0.0 mm	84 %	20 %
Sat 7 forecast	2 °C	9 °C	0.0 mm	97 %	20 %
Sun 8 forecast	2 °C	7 °C	0.0 mm	97 %	20 %
Mon 9 forecast	5 °C	12 °C	0.3 mm	88 %	19 %
Tue 10 forecast	12 °C	15 °C	2.7 mm	88 %	21 %
Wed 11 forecast	12 °C	16 °C	11.8 mm	93 %	26 %
Thu 12 forecast	11 °C	17 °C	3.0 mm	93 %	36 %

Temperatures corrected for the altitude of the municipality. Source: Open-Meteo.

Going further

Mushrooms in Yvelines · All départements · Ranking of départements · How the score is calculated

Neighbouring municipalities

Mantes-la-Jolie · Mantes-la-Ville · Limay · Magnanville · Bonnières-sur-Seine · Freneuse · Buchelay · Septeuil