There were concerns at the Basin Reserve, where Anderson bowled the majority of his 37 overs into a fierce wind, that niggling discomfort in his heel and back were taking their toll.
But after that rain-affected stalemate, and the one before it in the first Test at Dunedin, England's senior fast bowler is ready for one last push as the tourists bid for a clean sweep of series victories here in all formats. "I feel okay," he said.
"The rain probably helped in the end, getting an extra day off.
"It gave my body an extra bit of rest. So I hope, come Friday, my body will be ready to go five days again."
England should therefore be able to pick an unchanged team - with spinner Monty Panesar's place the only possible variable, barring last-minute injury.
Panesar took just one wicket in Wellington, and England's options are a return for off-spinner James Tredwell - whose solitary Test to date came in Bangladesh three years ago - or an all-pace attack, which would probably mean a debut for Chris Woakes.
The likelihood is that they will stick with the same formula, however - for a match which will be played on a drop-in pitch, and determine the success or otherwise of this tour.
"It's obviously a decider," Anderson said. "We want to win the series, and will be looking at it as a very important game.
"There's a lot of pressure around the game, and we'll have to play very well to compete with a New Zealand team."