#heatwave on X: trending history
#heatwave has trended in 43 locations since 28 January 2019, reaching #10 in Ireland. It was last on a list 26 June 2026.
First seen
28 Jan 2019
Last seen
26 Jun 2026
Locations
43
Best rank
#10 Ireland
Biggest days
| 23 Jul 2019 | 4 locations | |
| 26 Jul 2019 | 4 locations | |
| 18 Jul 2022 | 5 locations | |
| 19 Jul 2022 | 13 locations | |
| 20 Jul 2022 | 8 locations | |
| 27 May 2026 | 21 locations |
Where it trended most
- United Kingdom 29 updates
- Ireland 22 updates
- Canada 11 updates
- Switzerland 11 updates
- South Africa 8 updates
- Belgium 7 updates
- Pakistan 7 updates
- Netherlands 6 updates
Every time it trended
List updates per year, all locations.
2019
42 updates, 21 days
2020
11 updates, 10 days
2021
11 updates, 7 days
2022
44 updates, 13 days
2023
13 updates, 9 days
2024
2 updates, 2 days
2025
4 updates, 3 days
2026
26 updates, 3 days
Post volume on its busiest days
Highest volume recorded with the trend; 40 days have a figure.
- 20 July 2022110,841 posts
- 19 July 2022106,605 posts
- 18 July 202267,068 posts
- 21 July 202266,725 posts
- 26 July 201949,924 posts
From twtData's records of X trends in 450+ locations: the biggest countries every hour, the rest once a day. An "update" is one snapshot that listed this topic. Rank and hours on the lists count from November 2025, when our snapshots started keeping X's order; earlier days count only for locations and dates. 5 hours on the lists since then. Counted across 4 spellings.