Home› Pokédex› Hoenn› Rainy Castform

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Hundo CP Values

⚔️

Raids

Lv. 20

875 - 932 CP

🌤️

Raids (WB)

Lv. 25

1,094 - 1,165 CP

⭐

Max CP

Lv. 50

1,850 CP

🥚

Eggs

Lv. 20

875 - 932 CP

🔬

Research

Lv. 15

656 - 699 CP

Rainy Castform

#351 · Hoenn

Water

☁️ Rainy Boost

Base Stats

Attack 139

Defense 139

Stamina 172

Total: 450

Pokémon Info

Max CP	1,867
Generation	Hoenn (Gen 3)
Buddy Distance	5km
Released	✅ Yes
Shiny	✨ Yes
Shadow	❌ No

About Rainy Castform

Rainy Castform is a Water-type Pokémon from Hoenn (Generation 3) in Pokémon GO. It has a maximum Combat Power (CP) of 1,867 when powered up to Level 50 with perfect 15/15/15 IVs. Rainy Castform has base stats of 139 Attack, 139 Defense, and 172 Stamina, giving it a total stat product of 450.

Rainy Castform can be used in various battle formats depending on its moveset and the current meta. Its shiny form is available in Pokémon GO.

In Rainy weather, Rainy Castform receives a weather boost increasing its catch CP and spawn rate. The buddy walking distance for Rainy Castform is 5km per candy.

⚡ Fast Attacks

Move	Type	Power	Energy	DPS	EPS	PvP DPT	PvP EPT
Water Gun STAB	Water	5	+5	10.0	-	-	-
Tackle	Normal	5	+5	10.0	-	-	-

DPS = Damage/Sec (PvE) · EPS = Energy/Sec · DPT/EPT = Damage/Energy Per Turn (PvP) · STAB = +20% type bonus

💥 Charged Attacks

Move	Type	Power	Energy	DPS	PvP Pwr	PvP Nrg
Hydro Pump STAB	-	-	-	-	-	-
Thunder	Electric	100	-60	-	100	-60
Weather Ball Water STAB	-	-	-	-	-	-

🛡️ Type Effectiveness

Weaknesses

Rainy Castform takes increased damage from these types:

Electric 1.6×

Grass 1.6×

Resistances

Rainy Castform takes reduced damage from these types:

Fire 0.625×

Water 0.625×

Ice 0.625×

Steel 0.625×

🎯 Best Counters Against Rainy Castform

Top Pokémon to use when battling Rainy Castform in raids and gyms, sorted by Attack.

#	Pokémon	Type	ATK	DEF	STA	Max CP
1	Xurkitree	Electric	330	144	195	4,504
2	Kartana	Grass Steel	323	182	139	4,206
3	Zekrom	Dragon Electric	275	211	205	4,620
4	Vikavolt	Bug Electric	254	158	184	3,566
5	Zapdos	Electric Flying	253	185	207	4,035
6	Tapu Koko	Electric Fairy	250	181	172	3,625
7	Regieleki	Electric	250	125	190	3,207
8	Electivire	Electric	249	163	181	3,523
9	Tapu Bulu	Grass Fairy	249	215	172	3,912
10	Roserade	Grass Poison	243	185	155	3,399

🏆 Rainy Castform PvP IV Rankings

Best IVs for GO Battle League. Higher stat product = better PvP.

🟢 Great League (1500 CP)

#	ATK	DEF	STA	Lv	CP
1	1	15	14	41	1,500
2	0	12	14	42	1,496
3	0	12	15	42	1,500
4	0	13	13	42	1,497
5	1	14	14	41	1,496
6	1	14	15	41	1,500
7	0	13	9	43	1,500
8	0	14	12	42	1,497
9	1	15	13	41	1,496
10	0	15	11	42	1,498

🟣 Ultra League (2500 CP)

#	ATK	DEF	STA	Lv	CP
1	15	15	15	50	1,850

Ranked by Stat Product. #1 = best PvP. Master League: use 15/15/15.

📋 Rainy Castform IV Chart

Expected CP at different IV levels per encounter type.

IVs	Wild L30	Research L15	Raid L20	WB L25	Max L40	L50
100% (15/15/15)	1,399	699	932	1,165	1,632	1,850
98% (15/15/14)	1,395	697	930	1,162	1,627	1,845
96% (15/14/15)	1,394	697	929	1,162	1,626	1,844
93% (14/14/14)	1,381	690	921	1,151	1,612	1,827
91% (15/13/13)	1,382	691	921	1,152	1,612	1,828
87% (13/13/13)	1,364	682	909	1,137	1,591	1,805
82% (12/12/12)	1,347	673	898	1,122	1,572	1,782
80% (10/15/15)	1,353	676	902	1,128	1,579	1,790
67% (10/10/10)	1,313	656	875	1,094	1,532	1,737
0% (0/0/0)	1,150	575	767	958	1,342	1,522

📋 Rainy Castform Forms

📊 Special CP Values

Important CP values for Rainy Castform with perfect 15/15/15 IVs:

🏆 Max CP (Lv 50)	1,850 CP
🎯 Max CP (Lv 40)	1,632 CP
⚔️ Raid Catch (Lv 20)	875 - 932 CP
🌤️ Weather Boost (Lv 25)	1,094 - 1,165 CP
🥚 Egg Hatch (Lv 20)	875 - 932 CP
🔬 Research (Lv 15)	656 - 699 CP

📈 Max CP by Level

Maximum CP for Rainy Castform with perfect 15/15/15 IVs at each level.

Lv	Max CP	Lv	Max CP
1	23	26	1,632
2	1,632	27	1,632
3	1,632	28	1,632
4	1,632	29	1,632
5	220	30	1,399
6	1,632	31	1,632
7	1,632	32	1,632
8	1,632	33	1,632
9	1,632	34	1,632
10	466	35	1,515
11	1,632	36	1,632
12	1,632	37	1,632
13	1,632	38	1,632
14	1,632	39	1,632
15	699	40	1,632
16	1,632	41	1,632
17	1,632	42	1,632
18	1,632	43	1,632
19	1,632	44	1,632
20	932	45	1,745
21	1,632	46	1,632
22	1,632	47	1,632
23	1,632	48	1,632
24	1,632	49	1,632
25	1,165	50	1,850

📖 Complete Rainy Castform Pokémon GO Guide 2026

Rainy Castform (#351) is a Water-type Pokémon from the Hoenn region (Generation 3) in Pokémon GO. With a maximum CP of 1,867 at Level 50 with perfect 15/15/15 IVs, Rainy Castform has its niche uses in certain battle scenarios. This complete guide covers the best moveset, PvP analysis, raid counters, evolution, and shiny availability for Rainy Castform in 2026.

📊 Rainy Castform Stats Analysis

Rainy Castform's Attack stat is 139 (Average). The lower Attack stat means Rainy Castform may compensate with bulk or utility.

With 139 Defense (Average) and 172 Stamina (Good), the total stat product is 450. This gives Rainy Castform reasonable durability in battle. Compared to other Water-type Pokémon, Rainy Castform's stat distribution is balanced.

⚔️ Best Rainy Castform Moveset in Pokémon GO

The best moveset for Rainy Castform depends on whether you use it for raids, gyms, or PvP. For raids, use Water Gun (Fast) with Hydro Pump (Charged) for maximum DPS. This takes advantage of STAB (Same Type Attack Bonus) which provides a 20% damage boost for matching-type moves.

For PvP (GO Battle League), energy generation and coverage matter more than raw DPS. Rainy Castform has 2 Fast Attacks and 3 Charged Attacks to choose from.

🏆 Rainy Castform PvP Guide — GO Battle League 2026

Great League (1500 CP)

In Great League, Rainy Castform can be a viable pick. For Great League, lower Attack IVs (like 0/15/15) are preferred to maximize stat product under 1500 CP. The Water typing provides useful matchups against Fire, Water, Ice-type threats while being weak to Electric, Grass types.

Master League

In Master League, Rainy Castform faces tough competition from Pokémon with higher CP caps. It is better suited for capped leagues.

💪 Rainy Castform Raid Guide & Counters

As a raid attacker, Rainy Castform's effectiveness depends on its typing and 139 Attack stat. It may not be the top raid choice but contributes in the right conditions. Best counters against Rainy Castform use Electric, Grass-type moves.

🎯 How to Get Rainy Castform in Pokémon GO

Rainy Castform can be found in the wild, hatched from Eggs, obtained through Research tasks, and during events. In Rainy weather, it receives a spawn boost. The buddy distance is 5km per candy — use Pinap Berries for double candy when catching.

✨ Shiny Rainy Castform in Pokémon GO

Shiny Rainy Castform is available! Use the Normal/Shiny toggle on this page to preview. The shiny rate is approximately 1 in 500. Shiny variants are cosmetic only — same stats and performance. Check our Shiny Checklist for all available shinies.

🌤️ Weather Boost & Buddy

Rainy Castform gets a weather boost in Rainy weather, increasing wild spawn CP (up to Level 35) and raid catch CP to Level 25 (1,094 - 1,165 CP). The buddy distance is 5km per candy. Consider Rare Candy to supplement.

💡 Tips & Tricks

Best IVs for PvP: Great/Ultra League: 0/15/15 or similar for max stat product.
Second Charged Move: Costs 75K Stardust — adds coverage in PvP.
Trading: Can be freely traded. Lucky trades give 12/12/12 minimum IVs.
Catch rate: Use Pinap Berries for double candy.

❓ FAQ About Rainy Castform

Q: What is Rainy Castform's max CP?
A: 1,850 CP at Level 50, or 1,632 CP at Level 40.

Q: Is Rainy Castform good?
A: Useful in Great League PvP with the right setup.

Q: Can Rainy Castform be shiny?
A: Yes! Shiny Rainy Castform is available.

Q: What is Rainy Castform weak to?
A: Electric, Grass-type moves.

Q: Best moveset?
A: Water Gun + Hydro Pump for optimal DPS.

📚 Related Guides

Water Water-Type 🗺️ Hoenn 📱 Full Pokédex ✨ Shiny Checklist 📅 Events

Updated September 2026. Data from Pokémon GO Live and Pokémon GO Wiki.