Branch of the seine, effect in autumn

Branch of the Seine, Effect in Autumn (1890, Wallraf-Richartz Museum) is part of Caillebotte's extensive documentation of the Seine near his Petit-Gennevilliers property, painted across multiple seasons to capture the river's changing character. The autumn effect — atmospheric light, changing foliage reflected in the water, the quieter activity of the river after the summer sailing season — provided a different visual challenge from the bright regatta scenes of summer. These late river paintings place him in dialogue with the series paintings of Monet, who was simultaneously exploring the changing light effects on fixed subjects.

The autumn palette brings warm ochres, russets, and soft golds to the river landscape, with these colors reflected in the river's surface alongside the cooler blues and grays of sky and water. Caillebotte renders the autumn foliage with varied, rich brushwork, and the river's reflective surface with horizontal strokes that capture the rippled movement of the water.