Valmiki Ramayana Aranya Kanda Sarga 16 Shloka 10

मध्याह्ने at noon, स्पर्शतः the touch, सुखाः comfortable, अत्यन्तसुखसञ्चाराः comfortable to go about, दिवसाः daytime, सुभगादित्याः will be enjoyable, छायासलिलदुर्भगाः in shade the water will be enjoyable৷৷

The days are enjoyable at noon as it is pleasant to move about during this time since the sun is not scorching. But the shade and water seem to be unfortunate (as they are not liked by any one.