May in Tijuana averages a daily high of 22°C with nights around 12.6°C. Expect roughly 3 wet days totalling 7.4mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Tijuana is May–November.
Based on SAN DIEGO BROWN FIELD, CA US (8.2km), 1995–2024. 28 years of May data.