Spain has the world's second-highest death toll after Italy, with the virus so far claiming 9,053 lives and the number of confirmed cases reaching 102,136.
But on a day-to-day basis, the rate of new infections continued its downward trend, showing an increase of just over 8.0 per cent, compared with nearly 11 per cent on Tuesday, health ministry figures showed.
Coronavirus patients arrive at a military hospital set up in Madrid, Spain. File/Reuters
And the death rate has also slowed, from 27 per cent a week ago to 10.5 per cent on Wednesday, with officials saying the data appear to show the epidemic is reaching its peak.
But officials have warned that even if the epidemic is peaking, the pressure on the intensive care system would be subject to a lag of at least a week or longer, with hospitals likely to reach crisis point by the end of this week or early next.
Madrid remains the worst-hit region, with 3,865 deaths and nearly 30,000 cases, leaving hospitals and mortuaries overwhelmed.