The halftime score of 6-9 didn't reflect Wales' dominance of the first half. Scarlets centre Jonathan Davies displayed his predatory try-scoring prowess to edge Wales further in front in the 45th minute as he picked up a loose ball to score with his first touch of the ball in the game.
Wales Under 20's faced a huge challenge in the mud bath at Viterbo as the heaven's opened but it failed to stop their unbeaten Six Nations run.
After the game had survived a pitch inspection and a 45 minute kick-off delay, it took just 90 seconds for Wales to get the scoreboard rolling.
Outside half Sam Davies kicked-off and Wales took advantage of the Italians' knock-on. A quick tap penalty from Scarlets and Llandovery scrum half Rhodri Williams got his side on the front foot with Scarlets and Carmarthen Quins flanker Dan Thomas crossing the whitewash for the first score of the game.
Williams also played his part in Wales' second try as he picked up and dived over in the corner as the visitor's used the scrum as their main weapon.
With a penalty try also added for persistent infringement by the home side Wales concluded victorious winners with a 10-25 scoreline.
In Wales Under 18s first capped international of the season it was more of the same as the Scarlets got their name on the scoreboard after some great attacking play.
France were first on the scoreboard with a penalty for Toulouse full back Thomas Ramos, but Wales then scored three unanswered tries, a brace for Scarlets fullback Steffan Evans with captain and right wing Dafydd Howells also touching down.
France scored two tries to bring them within two points of Wales at 20-22 and the home side under considerable pressure at St Helens.
However, Wales responded well with some fifteen man rugby, Scarlets No 8 Tom Phillips and lock Josh Helps amongst those to make the hard yards before the backs showed some lovely handling skills to send Howells over for the fourth try securing a 29-27 victory.
It was also a brace of Scarlets tries that saw Wales Women take a narrow 15-16 victory over the Italians in what was a real cliffhanger at Stadio Pacevecchia in Benevento.
Italy opened the scoring in the fourth minute with a penalty but Wales' industrious pack worked prop Catrin Edwards over in the 27th minute from a lineout close to the Italy try-line.
Italy hit back with a second penalty but Wales hit the front again on the stroke of halftime when Lowri Harries followed Edwards' example and touched down from another excellent move from a lineout.
Resolute defence ensured Italy never got another sniff of any points as Wales registered their first win of the campaign to remain on course of qualifying automatically for next year's World Cup in France with a top four finish in the Six Nations.