The temperature range is generally smaller in areas nearer the oceans than in areas farther away. This phenomenon is known as maritime influence or maritime moderation.
Oceans have a moderating effect on temperature due to their high heat capacity. They can absorb and store large amounts of heat, and this stored heat is released slowly, regulating temperature variations.
In contrast, continental areas (those farther away from the oceans) tend to experience larger temperature ranges because land has a lower heat capacity than water. As a result, continents heat up and cool down more quickly than oceans. This leads to more extreme temperatures, with hotter temperatures during the day and colder temperatures at night in continental interiors.
Complete question
At the same latitude, the temperature range is (smaller, larger or equal to,) in lands nearer the oceans than away from the oceans.