Awareness EnvironmentSafety

International Day against Nuclear Tests

The International Day against Nuclear Tests on 29 August raises awareness of the effects of nuclear test explosions and calls for them to end.

  • UK
  • USA
  • Ireland (not marked)
  • Canada (not marked)
  • Australia (not marked)
  • New Zealand (not marked)
  • International
ListingAdded by us from official sources
Last checked19 October 2026
First held2009

About the day

The UN General Assembly adopted the day unanimously in December 2009. The date marks the closure of the Semipalatinsk nuclear test site in Kazakhstan in 1991.

Dates for the next three years

YearDateWhereStatus
2027Sunday 29 August 2027UK, USA, InternationalSame date every year
2028Tuesday 29 August 2028UK, USA, InternationalSame date every year
2029Wednesday 29 August 2029UK, USA, InternationalSame date every year

Where this information comes from

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