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PSI Readings over the last 24 Hours

24-hr PSI Readings from 1am to 12am on 31 Aug 2016

Time 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm
North 59 59 59 58 58 59 60 62 63 65 65 65
South 52 53 53 53 53 53 53 54 54 54 54 54
East 47 47 48 48 49 49 49 50 51 51 52 51
West 54 54 53 53 52 52 52 53 53 54 55 55
Central 53 53 54 54 55 55 55 56 56 57 56 56
Overall Singapore 47-59 47-59 48-59 48-58 49-58 49-59 49-60 50-62 51-63 51-65 52-65 51-65
Time 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
North 65 64 64 64 64 65 65 66 67 66 66 -
South 55 55 55 54 54 54 55 55 55 55 54 -
East 51 51 51 49 51 51 51 49 49 48 47 -
West 56 56 56 56 56 55 56 55 55 54 55 -
Central 56 56 57 56 57 57 57 57 56 56 55 -
Overall Singapore 51-65 51-64 51-64 49-64 51-64 51-65 51-65 49-66 49-67 48-66 47-66 -

3-hr PSI Readings from 1am to 12am on 31 Aug 2016

Time 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am 11am 12pm
3-hr PSI 58 55 52 53 54 56 57 59 61 62 59 56
Time 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm 9pm 10pm 11pm 12am
3-hr PSI 53 53 56 56 55 53 55 58 59 57 55 -


The real-time data is automatically published as soon as it is generated by our air monitoring stations. The data is subject to verification and correction subsequently if necessary.