He believes the next period of the season will be the toughest.
With seven matches between now and New Year's Day, starting with Tuesday's Champions League game in Germany against RB Leipzig, Guardiola says many things can happen at this crucial stage.
“There's many games to come and it's the toughest part of the season. We'll try to continue at this level and this rhythm," he said.
“Everyone is back, it doesn't matter who plays, we are consistent and winning games but in football everything can go down in one second.
“I'm more than pleased with what the guys have done in this tough period and now comes the toughest one for the amount of games, weather, injuries.
“We keep going with this rhythm and try to play well.
“Now we have the momentum from Bernardo, another day it will be Phil, then Raz - the most important thing is the performance.
“The result can be random but consistency is the most important thing to help us be a stable team, that's why we've won seven in a row.
“Today one team dropped points, next week it could be us or Liverpool - many things can happen."