WHOLE CHARACTER
温wēn
warm; neither hot nor cold (温暖,保温); gentle and mild — of temperament (温柔,温和); to warm something slightly (把酒温一下); to review (温习,温故而知新)
温 is warm and gentle: 温度 'temperature', 温暖 'warm', 温习 'review', 保温 'keep warm'.
ZDIC: 形声,左形右声 — the sound side is not named. The right block is the old sound side, shown as written pieces: 日 over 皿.
MEANING: THE WATER SIDE
氵shuǐ
water (as the source idea 水)
A component form of 水; not counted as a standalone character page.
In 温: meaning: the water side The three-drop water form.
RIGHT: THE OLD SOUND BLOCK — WRITTEN AS 日 OVER 皿
昷wēn
an old graph tied to warmth (dictionary form)
An old dictionary graph; when a character keeps it as a sound block, the role is stated on that character's page.
In 温: right: the old sound block — written as 日 over 皿 Shown as written pieces; no sound match is claimed for the parts.