Climate

A pastoral rural scene.

Temperature on New Eden fluctuates due to a number of factors, including season, biome, night/day cycle, day-to-day weather patterns, and altitude. The weather affects you, Survivor.

Temperature

General Effects

Rain will reduce the ambient temperature by 4°. A storm will reduce the ambient temperature by 5°.
Altitude affects the temperature. In spring, summer, and fall, the temperature decreases at y>64 by (y-64)*.03°. During winter, an extra (y/64)/5) meters of altitude is added to the calculation.
Artificial light will warm air by 0° - 15° depending on distance to the light-source, until 25°.
At noon, the air is warmer by about 3°. At midnight, the air is about 5° cooler.

Seasonal Effects

Spring: Average 5°C - 23°C depending on biome. Being in water will chill the Survivor by 4°.
Summer: Average 25°C - 40°C depending on biome. Being in water will chill the Survivor by 4°.
Fall: Average 5°C - 25°C depending on biome. Being in water will chill the Survivor by 10°.
Winter: Average -10°C - 5°C depending on biome. Being in water will chill the Survivor by 10°.

Biomes

Hot biomes (desert, badlands, jungle) are about 15° hotter.
Warm biomes (savannah) are about 15° hotter.
Normal biomes run about the average temperature.
Cold biomes (mountains, taiga) are about 4° cooler.
Snowy biomes are about 12° cooler.

Physiological Effects

Drinking water reduces the felt temperature by 10°, until 25°, for 5 minutes.
Full hunger bar increases the felt temperature by 5°, if lower than 25°.
At or below -20°, freezing effects with damage will occur.
At or below -15°, the Survivor will feel slower.
At or below -10°, the Survivor will feel increased hunger.
Between 15° and 30° the Survivor is comfortable and will receive 2 hearts bonus.*
At or over 50°, the Survivor will stop healing.
At or over 60°, the Survivor will feel slower.
At or over 65°, the Survivor will literally combust.

Clothing Effects

Wearing leather clothing adds 20° to the wearer, until 25°.
Wearing iron armor adds 5° to the wearer.
Wearing gold armor adds 5° to the wearer.
Wearing diamond armor adds 5° to the wearer.
Wearing netherite armor adds 3° to the wearer.

Seasons

Spring

Leaves in the forest will turn pink and water will have a slightly lighter tint.
Flowers will grow everywhere. The entire world will be filled with flowers.
Snow and ice will quickly melt.
Many farm animals will spawn, with babies.
Bees will spawn.

Summer

Cold biomes will warm up and show new colors. The sky is a little lighter. Leaves are bright and full.
Most of the flowers that sprouted during spring will die off.
Patches of berry bushes will grow in a widespread fashion.
Crops/plants exposed to the sky will grow at 2x the rate.
It won't rain.
Days will be long (around 13 minutes) and nights will be short (around 7 minutes).
Animals that normally spawn in the jungle will now spawn everywhere.

Fall

Trees will turn all kinds of colors.
Grass will look darker and muddy.
The sky will turn grey.
It will rain often.
Bats will spawn frequently at night.
Mooshrooms and foxes will spawn frequently.
Extra spiders will spawn at night.

Winter

The leaves will turn icy and the sky will bleach white.
All water exposed to the sky will freeze.
It will snow instead of rain. Snow does not accumulate on glass, stairs, rails, or slabs. It is possible to create roadways which will remain snow-free by placing slabs instead of blocks. Slabs may be placed into the top half of the block, emulating the look of full blocks.
NIghts will be long (about 13 minutes) and days will be short (about 7 minutes).
Wolfs, foxes, and polar bears will spawn in all biomes.
Crops/plants will not grow if they are exposed to the sky. Crop growth is poor on New Eden.