All 55 Weathers in Mewgenics — Complete Weather Survival Guide
Master every weather condition in Mewgenics. Full reference for all 55 weather types with effects, danger ratings, and survival strategies for each one.
Weather is one of the most impactful mechanics in Mewgenics. There are 55 different weather conditions, each universally affecting all units for the duration of one or more chapters. Weather can appear naturally between days at your house, be triggered by certain abilities, or result from specific event outcomes. Knowing what each weather does — and how to play around it — is the difference between a smooth run and a total wipe.
Related guide: For an in-depth breakdown of the Heat Wave weather specifically, check out our How to Get Rid of Heatwave in Mewgenics guide.
How Weather Works
- Weather effects are universal — they affect all units (allies and enemies)
- A weather condition lasts for one or more chapters during an adventure
- Weather can appear at your house before an adventure, telling you what to expect
- Some abilities and event outcomes can change or trigger weather mid-run
- There are 75 possible weathers in the game’s data, with 55 currently documented
No Effect
| Weather | Effect |
|---|---|
| Clear Skies | There are no weather effects. |
The default state. Enjoy it while it lasts.
Elemental Weathers
These weathers add persistent elemental effects or elemental tiles to battles. Plan your team’s elemental resistances accordingly.
| Weather | Effect | Danger |
|---|---|---|
| Rain | Persistent Water Element. | ⭐ Low |
| Heavy Rain | Persistent Water Element. Extra water tiles in every battle. | ⭐⭐ Medium |
| Flash Flood | Persistent Water Element. A ton of extra water tiles in every battle. | ⭐⭐⭐ High |
| Snow | Persistent Ice Element. | ⭐⭐ Medium |
| Firestorm | Persistent Fire Element. Fires no longer burn out. Parts of the map are on fire. | ⭐⭐⭐ High |
Strategy: Water-heavy weathers slow movement unless you have the Fin mutation or Duck Leg birth defect. Ice weathers make positioning treacherous. Firestorm is extremely dangerous — bring fire resistance or Water-element abilities to douse flames.
Environmental Hazards
These weathers deal direct damage, alter terrain, or create dangerous battlefield conditions every round.
| Weather | Effect | Danger |
|---|---|---|
| Fog | All attacks and abilities have a +10% chance to miss. | ⭐⭐ Medium |
| Windy | At the end of each round, wind blows everything 1 space in a random direction. | ⭐⭐ Medium |
| Sandstorm | At the end of each round, damages everything by 1. | ⭐⭐ Medium |
| Overgrowth | Extra tall grass and bramble tiles in every battle. | ⭐ Low |
| Earthquake | Objects destroyed, rocks everywhere. | ⭐⭐ Medium |
| Wildfire | Fire everywhere! | ⭐⭐⭐ High |
| Heat Wave | Cats do not heal between battles and all healing is weaker. Everything is Freeze Immune. Staying Wet negates these effects. | ⭐⭐⭐ High |
| Oil Spill | A random tile becomes a puddle of oil after every turn. | ⭐⭐ Medium |
| Strange Spikes | Kinetic spikes spawn every round. | ⭐⭐ Medium |
Strategy: Sandstorm’s chip damage adds up fast — bring healing. Heat Wave cripples Clerics, so use Water abilities or Water Bottles to stay Wet. Wildfire and Firestorm are the deadliest environmental weathers; avoid them if unprepared.
Storm Combos
These combine multiple hazardous effects into one devastating weather. They are among the most dangerous conditions in the game.
| Weather | Effect | Danger |
|---|---|---|
| Thunderstorm | Persistent Water Element. Wind blows everything 1 space each round. Chance for random lightning strikes after each turn. | ⭐⭐⭐ High |
| Blizzard | Persistent Ice Element. Wind blows everything 1 space each round. Chance for random lightning strikes after each turn. | ⭐⭐⭐ High |
| Hurricane | Persistent Water Element. Wind blows everything 1 space each round. 1–2 random tiles become water after every turn. | ⭐⭐⭐ High |
| Meteornado | At the end of each round, damages everything by 1, with a 33% chance to inflict Bruise. | ⭐⭐⭐ High |
| Tornadoes | Twisters spawn each round. | ⭐⭐⭐ High |
Strategy: Storm combos demand high mobility and Constitution. The wind displacement can break your formation, and lightning/meteor strikes add random burst damage. Position your cats near the center of the map to minimize displacement off the edge.
Meteor & Cosmic Events
Rare weathers with massive spectacle and equally massive danger.
| Weather | Effect | Danger |
|---|---|---|
| Meteor Shower | After each turn there’s a chance for a flaming meteor to fall onto a random tile. | ⭐⭐⭐ High |
| Solar Flare | A solar flare strikes a large area at the end of each round, Burning and inflicting Blind. | ⭐⭐⭐ High |
| Geomagnetic Storm | All rocks levitate at the end of the round. Extra rocks spawn in each battle. | ⭐⭐ Medium |
| Judgement Day | Some tiles get Raptured at the end of each round. More tiles are affected every round. | ⭐⭐⭐⭐ Extreme |
Strategy: Judgement Day is the single most dangerous weather — the playable area shrinks every round, forcing you to end fights quickly. Solar Flare’s Blind debuff makes accuracy-dependent classes much weaker. Bring AoE abilities to finish battles fast.
Creature & Enemy Spawns
These weathers add neutral or hostile units to every battle, increasing the chaos and difficulty.
| Weather | Effect | Danger |
|---|---|---|
| Raining Frogs | Extra neutral frogs in every battle. | ⭐ Low |
| Restless Dead | Zombies spawn at the end of each round. | ⭐⭐⭐ High |
| Haunted Night | Ghosts spawn at the end of each round. | ⭐⭐⭐ High |
| Bird Migration | 1–2 extra birds spawn in each battle. | ⭐ Low |
| Birdemic | 2–4 birds spawn in each battle. All birds are stronger and angry! | ⭐⭐⭐ High |
| Robot Uprising | 2–4 robots spawn in each battle. All robots have gone rogue! | ⭐⭐⭐ High |
| Alien Invasion | 2–4 aliens spawn in each battle. Aliens are invading! | ⭐⭐⭐ High |
| The Hollowing | Extra hollowed spawn each battle. | ⭐⭐ Medium |
| Strange Eggs | 3–6 strange eggs spawn in each battle. Kill them before they hatch! | ⭐⭐⭐ High |
Strategy: Spawn weathers mean more enemies per fight. Prioritize AoE damage dealers like Mages. With Strange Eggs, always destroy eggs immediately — whatever hatches is far worse. Restless Dead and Haunted Night force you to rush battles before you’re overwhelmed.
Swarm Weathers
Insect and critter swarms that add tile effects or minor units to the battlefield.
| Weather | Effect | Danger |
|---|---|---|
| Firefly Swarm | All allies have +2 Luck. | ⭐ Beneficial |
| Butterfly Swarm | All allies have +2 Luck. | ⭐ Beneficial |
| Fly Swarm | Extra flies in every battle. | ⭐ Low |
| Cockroach Infestation | Extra cockroaches in every battle. | ⭐ Low |
| Infestation | All non-tiny units explode into maggots or flies when they die. | ⭐⭐ Medium |
Strategy: Firefly and Butterfly Swarm are free buffs — enjoy the +2 Luck for better crits and event outcomes. Infestation creates additional units on every kill, so plan for extended fights.
Tile & Hazard Weathers
These add specific objects or tile hazards to every battle.
| Weather | Effect | Danger |
|---|---|---|
| Trash Day | Extra junk in every battle. | ⭐ Low |
| Pipe Blockage | Extra poop and sewage in every battle. | ⭐ Low |
| Hunting Season | Extra bear traps in every battle. | ⭐⭐ Medium |
| Minesweeper | Extra land mines in every battle. | ⭐⭐⭐ High |
| Training Day | A punching bag with Kinetic Spikes 5 spawns in each battle. | ⭐ Neutral |
Strategy: Minesweeper is deceptively lethal — mines deal massive damage. Move carefully and use ranged attacks. Hunting Season punishes melee-heavy teams. Training Day punching bags can actually be useful for farming damage-based ability triggers.
Beneficial & Utility Weathers
Rare weathers that help more than they hurt.
| Weather | Effect | Danger |
|---|---|---|
| Pay Day | Extra coins in every battle. | 💰 Beneficial |
| Blessed Day | Everyone starts with +2 Shield and +2 Healing. | ✨ Beneficial |
| Drug Awareness Day | Extra catnip in every battle. Find a random pill after every battle. | 💊 Beneficial |
| Low Gravity | Jumps, throws, and projectile abilities have +2 range. All projectile abilities ignore blocks. | ⭐ Situational |
| Stealth Mission | All units gain Stealth at the start of the battle. | ⭐ Situational |
Strategy: Pay Day is a great time to farm coins for NPC upgrades. Drug Awareness Day’s free pills and catnip can fund ability-heavy strategies. Low Gravity is a massive buff for ranged classes like Hunters and Mages — take full advantage.
Chaos Weathers
Unpredictable weathers that randomize the entire battle experience.
| Weather | Effect | Danger |
|---|---|---|
| Pandemonium | Everyone starts with 5 random status effects. | ⭐⭐⭐ High |
| The Shimmer | All units gain a random status effect at the start of each round. Cats gain a random mutation at the end of each battle. | ⭐⭐⭐ High |
| Crazy Weather | The weather is different every battle! | ❓ Variable |
| Acid Rain | At the end of each round, damages everything by 2 with a chance to lower a random stat. | ⭐⭐⭐ High |
| Bounty Hunting | A random unit in each battle has a bounty. A Bounty Hunter is here to collect. | ⭐⭐ Medium |
Strategy: The Shimmer is a double-edged sword — random mutations mean your cats could come out with amazing new abilities or terrible ones. It’s great for mutation farming if you’re feeling lucky. Pandemonium is pure chaos; bring status-cleanse abilities. Acid Rain is quietly one of the most dangerous weathers due to its stat reduction stacking over time.
Unique & Special Weathers
These weathers have entirely unique mechanics that don’t fit other categories.
| Weather | Effect | Danger |
|---|---|---|
| Eruption | A mini volcano spawns in each battle. | ⭐⭐ Medium |
| Alien Overgrowth | A few bramble patches spawn in each battle, but something is strange about them… | ⭐⭐ Medium |
Strategy: Eruption’s volcano creates fire tiles around it each round — keep your distance. Alien Overgrowth brambles may have hidden effects beyond normal brambles; approach with caution.
Top 5 Most Dangerous Weathers
- Judgement Day — The map disappears beneath you. End fights fast or die.
- Firestorm — Permanent, spreading fire with no natural burnout.
- Acid Rain — 2 damage/round + stat reduction makes long fights impossible.
- Pandemonium — 5 random debuffs can instantly cripple your team.
- Thunderstorm — Water + wind + lightning is a lethal combination.
Top 5 Best Weathers to Hope For
- Pay Day — Free coins every battle.
- Blessed Day — +2 Shield and +2 Healing for everyone.
- Low Gravity — Massive ranged combat buff.
- Firefly/Butterfly Swarm — Free +2 Luck.
- The Shimmer — Free mutations (if you’re feeling lucky).