It is possible to solo defeat Heatran in Pokémon GO 5-star raids because the creature is extremely weak to Ground-type attacks.
There are plenty of powerful Pocket Monsters who have Ground as their type, allowing trainers to take Heatran down in a Raid Battle.
If you follow a proper strategic plan of action with all Ground-type creatures against Heatran raids, then it is a walk in the park for those who want to beat it all on their own.
An important note to remember is that Heatran is a dual Steel- and Fire-type creature. Therefore, it is also weak to Fighting- and Water-type attacks.
However, using these moves in a Raid Battle can be costly, as Ground-types are more trustworthy to solo defeat Heatran in Pokémon GO.
Best counters to solo defeat Heatran in Pokémon GO

Ground-type counters against Heatran raids
| NAME | FAST ATTACKS | CHARGED ATTACKS |
| Primal Groudon | Mud Shot | Precipice Blade |
| Shadow Groudon | Mud Shot | Earth Power |
| Therian Forme Landorus | Mud Shot | Sandsear Storm |
| Shadow Rhyperior | Mud-Slap | Earthquake |
| Shadow Landorus | Mud Shot | Earth Power |
| Shadow Excadrill | Mud-Slap | Scorching Sand |
| Mega Swampert | Mud-Slap | High Horsepower |
| Mega Garchomp | Mud Shot | Earth Power |
| Shadow Rhydon | Mud-Slap | Earth Power |
Water-type counters against Heatran raids
There are a few number of Water-type counters to solo defeat Heatran in
Pokémon GO raids.
| NAME | FAST ATTACKS | CHARGED ATTACKS |
| Primal Kyogre | Waterfall | Origin Pulse |
| Shadow Kyogre | Waterfall | Origin Pulse |
| Mega Blastoise | Water Gun | Hydro Cannon |
| Shadow Kingler | Mud Shot | Crabhammer |
| Volcaninon | Water Gun | Earth Power |
Fighting-type counters against Heatran raids
| NAME | FAST ATTACKS | CHARGED ATTACKS |
| Mega Lucario | Force Palm | Aura Sphere |
| Mega Blaziken | Counter | Focus Blast |
| Shadow Urasluna | Rock Smash | High Horsepower |
| Terrakion | Double Kick | Earthquake |
| Shadow Nidoking | Double Kick | Earth Power |
| Shadow Conkeldurr | Counter | Dynamic Punch |
| Haxorus | Counter | Earthquake |
Best plan of action to solo defeat Heatran in Pokémon GO

In a 5-star Raid Battle featuring Heatran, the creature has a CP of 49,192.
You are given 300 seconds to bring down the monster, and you must complete the
challenge within the stated time limit.
If you successfully defeat Heatran, you can encounter it and then add it to your collection.
From the above information, it is clear that you will need to go for strong Ground-type counters like Primal Groudon, Therian Forme Landorus, and Shadow Rhyperior.
These creatures are not only powerful but also time-friendly and can help you solo defeat Heatran in Pokémon GO 5-star raids within five minutes.
Please note that once you encounter Heatran after winning a Raid Battle, these will be its catch CP.
| Weather condition | Minimum CP | Maximum CP |
| No Weather Boost | 2058 | 2145 |
| Weather Boost | 2573 | 2681 |
One more thing to note is that Heatran encounters and performance are increased during Sunny and Snowy weather conditions.
Therefore, it is best to solo defeat Heatran in Pokémon GO in these weather scenarios.
