Climate

Climate is a descriptor used by the IISS to denote average planetary temperate ranges.

• It is not designated in the UWP, but it was semi-regulated by the time of the T5SS using trade codes.

Description / Specifications

No information yet available.

• Trade Classification
• Climate and Density Key

T5SS Climate Categories Table

The descriptors are as follows:

T5SS Climate Categories

Climate:	Temperature Range: (Degrees Celsius)	T5SS TC:	Lifeforms:	Remarks:
Vacuum (None)	Almost always cold or frozen.	Va (vacuum) As (asteroid or planetoid)	TBD	Habitation is almost always impossible without extensive technology. Usually associated with worlds without atmospheres. In such cases, the climate of the world is often determined by mean distance from the local star.
Frozen	Below -30	Fr (frozen)	TBD	Habitation is near impossible without technology.
Very Cold	-30 to -20	Vc (very cold)	Ic (iceworld)	Habitation is very difficult.
Cold	-20 to -5	Co (cold)	Ic (iceworld)	Habitation is difficult.
Chilly	-5 to 5	Ch (chilly)	TBD	Still marginally habitable.
Cool	5 to 15	Tu (tundra)	TBD	Still habitable.
Normal	15 to 25	Tp (temperate)	TBD	Hospitable: Almost every garden world or Terra-prime world possess this ideal climate.
Warm	25 to 40	Wa (warm)	TBD	Still habitable.
Tropical	40 to 50	Tr (tropical)	TBD	Still marginally habitable.
Hot	50 to 60	Ho (hot)	TBD	Habitation is difficult.
Very Hot	60 to 70	Vh (very hot)	TBD	Habitation is very difficult.
Infernal	70+	If (infernal)	TBD	Habitation is near impossible without technology. Typical of hellworlds, insidious worlds, many radworlds, and worlds with too many greenhouse gases. Venus (SR 1827) (world) is typically thought of as an exemplar world for this category.
Variable	Variable	Lk (locked: mainworld) Tz (twilight Zone: satellite)	TBD	Habitation is almost always impossible without extensive technology. Often reserved for worlds that have large variations in temperature due to eccentric orbits or significant axial tilts.

History & Background / Dossier

No information yet available.

References & Contributors / Sources

This article has metadata.

This article is missing content for one or more detailed sections. Additional details are required to complete the article. You can help the Traveller Wiki by expanding it.

This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Mongoose Publishing or by permission of the author. The page history lists all of the contributions.

• GURPS Traveller: First In
• TBD
• Author & Contributor: Lord (Marquis) and Master of Sophontology Maksim-Smelchak of the Ministry of Science