| 1/1/1998, Thu | New Year's Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 1/26/1998, Mon | Australia Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- 1999 Parades, special events
|
| 3/9/1998, Mon | Adelaide Cup Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- One of largest horse races in Australia, public holiday. Changed from May to March in 2007.
|
| 4/5/1998, Sun | Palm Sunday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/10/1998, Fri | Good Friday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/11/1998, Sat | Easter Saturday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/12/1998, Sun | Easter |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/13/1998, Mon | Easter Monday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/25/1998, Sat | Anzac Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- Commemoration March
|
| 6/8/1998, Mon | Queen's Birthday/Volunteer's Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 9/4/1998, Fri | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/5/1998, Sat | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/6/1998, Sun | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/7/1998, Mon | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/8/1998, Tue | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/9/1998, Wed | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/10/1998, Thu | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/11/1998, Fri | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 9/12/1998, Sat | Royal Adelaide Show |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- State Fair-over 635,000 people
|
| 10/5/1998, Mon | Labor Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 12/24/1998, Thu | Christmas Eve |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 12/25/1998, Fri | Christmas Day |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 12/26/1998, Sat | Boxing Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 12/28/1998, Mon | Boxing Day: Additional Observance Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 12/31/1998, Thu | New Year's Eve |
- Businesses Closed
- PM
- Religion
- –
- Disrespectful to Hold an Event
- –
|