Narrative:

ATC advised of an arrival change. After a few minutes and being passed to another sector; we received another reroute. After established; ATC switched to another sector and started giving vectors away from ZZZ. At that time the arrival fuel in the FMS dropped from around 11000 pounds to around 6.9 in amber color indicating that with these extra vectors we could be starting to burn into our original reserves. The captain stated to ATC that we needed priority. ATC then gave direct zzzzz intersection. After various missed approaches at ZZZ by other carriers ATC gave us another vector away from ZZZ. ZZZ1 was also deteriorating; so I concurred with the captain to [advise ATC] and proceed to ZZZ2 and had an uneventful landing; for refueling.if weather starts to deteriorate beyond what forecasts show; and the crew asks for priority; have ATC suggest to proceed to alternate or other suitable airport. There will be time for another attempt to the original destination.

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Original NASA ASRS Text

Title: A320 First Officer reported diverting due to deteriorating weather and a fuel critical situation.

Narrative: ATC advised of an arrival change. After a few minutes and being passed to another sector; we received another reroute. After established; ATC switched to another sector and started giving vectors away from ZZZ. At that time the arrival fuel in the FMS dropped from around 11000 pounds to around 6.9 in amber color indicating that with these extra vectors we could be starting to burn into our original reserves. The Captain stated to ATC that we needed priority. ATC then gave direct ZZZZZ intersection. After various missed approaches at ZZZ by other carriers ATC gave us another vector away from ZZZ. ZZZ1 was also deteriorating; so I concurred with the Captain to [advise ATC] and proceed to ZZZ2 and had an uneventful landing; for refueling.If weather starts to deteriorate beyond what forecasts show; and the crew asks for priority; have ATC suggest to proceed to alternate or other suitable airport. There will be time for another attempt to the original destination.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.