The South-east Asia (SEA) Games organisers will follow the National Environment Agency guidelines on when it's safe to conduct outdoor sports events.
The Straits Times quoted experts on Tuesday saying that the haze, which traditionally occurs here between May and October, may come earlier this year.
Strenuous outdoor events, such as the marathon, 20km race walk and triathlon, will be held early on in the Games such that they can be rescheduled if need be.
In addition, competition schedules for the various sports can be compressed or adjusted, in consultation with the SEA Games Federation, said Singsoc chairman Lim Teck Yin.
He said: " We have given ourselves a benchmark that minimally we have to complete at least 75 per cent of the events to declare that we have successfully conducted the Games."
Expect delays in getting in and out of competition venues.
While recent sports competitions such as the Asian Netball Championships and the Asean Football Federation Suzuki Cup featured security measures, these will be ramped up during the Games.
Additional security personnel will be on duty in and around the Games venues, along with metal detectors and other security apparatus that are commonly seen during major Games.
Lim said: "We will not be compromising (on security)... there will be a bit of a lockdown and it will take a bit of time to clear the security channels.
"This is a high-profile event in an iconic year for Singapore, so give yourselves enough time to get to your seats."
He added that he will work with the police and national sports associations on how to manage venue security without compromising on the atmosphere.
The organisers are confident of staying within the $324.5 million budget, Lim said yesterday.
Some $148.3m will be spent on areas such as competition and medical costs, and technology associated with the events.
Other costs include manpower, accommodation, transport, outreach and the opening and closing ceremonies.
In addition, Singsoc has collected more than $60m in sponsorships, with "more to come in the coming weeks".
The organisers had originally targeted $50m in sponsorships.
Lim said Singsoc had been prudent in keeping within the budget from the early days in organising the Games, with staff coming up with innovations to save costs.
For example, chef-de-missions were given tablets with the various lengthy technical manuals to saving on printing costs in an earlier meeting. - LIM SAY HENG