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San Giovanni Weather in September
San Giovanni, Rome, Italy
About San Giovanni in September
San Giovanni sits on the broad Caelian Hill slope, where its moderate elevation provides marginally better ventilation than the Tiber lowlands but not enough to escape Rome's summer heat dome. The district's dense postwar apartment blocks with dark roofing and limited setbacks store significant thermal mass, keeping overnight temperatures elevated.
For detailed monthly temperature and rainfall data for Rome in September, see the Rome September weather guide.