I am afraid at present Kendo UI Gauge widget does not have a title option. Actually, this idea has been already shared at our UserVoice portal so if you wish you may cast a vote, leave a comment or monitor the community's interest in it here. The more votes the suggestion collects, the higher priority will have.
Meanwhile, as a possible workaround you can create a custom title and apply a custom styling to it in order to achieve the desired outcome.
the Telerik team
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