Climate

The Caves
The caves are a mile below sea level, so sunlight has that far to travel from the ceiling opening before it gets to the Travelers' territory (in most spaces). Clouds take up most of the main hollow (called the Garden of Spirit) for most of the year. Most caverns with clouds are covered with dense vegetation.

The Travelers that live in the Garden of Spirit recognize two seasons, warm and cold, with a rainy season that eclipses parts of both. These climate characteristics are also observed in the Travelers' Camp as a result.

Temperature: Averages 30F (-1C) to 60F (15.5C) over the year.

Warm season lasts 3.7 months, from May 25th to September 14th, with an average high above 55F (12.8C). The hottest day of the year is July 31st with an average high of 63F (17.2C) and low of 46F (7.8C).

Cold season lasts for 3 months, from November 27th to February 29th, with an average daily high below 52F (11.1C). The coldest day of the year is January 17th, with an average low of 27F (-2.8C) and high of 44F (6.7C).

Rains frequently from March - October; "rainy season" would be May - September. This is a dangerous time for the Travelers, because many passageways between the Garden of Spirit become flooded and too dangerous to travel.

Water within the caves (such as pools or rivers) averages around 40F (4.4C).

(referenced from the weather in Wulong, China, with degrees lowered due to the position of the Travelers' camp)

The Beach
This "biome" applies to both the Omen Watchers' camp and Lionfish's Island. The main difference between the island and mainland/beach biomes from the caves is that they are susceptible to the two monsoon seasons that wrack the area.

Creatures on the mainland recognize two main seasons, the rainy/wet and dry seasons.

Temperature: Averages 77F (25C) to 87F (30C) over the year. Rarely gets over 90F (32C) or under 73F (23C).

Ocean water temperature is usually 80F (26C) when sunny, and doesnt get below 75F (24C).

Wet season occurs late April - January. It rains almost daily due to the tropic climate and humidity, so most of the year is considered "wet season." The rainiest months are October and June.

Dry season starts February 12th and ends April 15th. The driest months are February and August.

The coolest time is between December and January. The warmest time is between April and May.

Monsoons
There are two main monsoons, Oibutan Tongus (equivalent of South-West Monsoon) and Magadau Tongus (equivalent of North-East Monsoon).

Oibutan Tongus runs roughly May - October. Magadau Tongus runs roughly November - March.

There are also intermittent storms that often carry into the mainland between April and November. These could happen at any time or not at all, depending on the weather out at sea. Basically, just know that heavy rainstorms with medium winds have a higher chance to spawn during this time.

Weather
Incredibly rainy, obviously. Most of the year is considered the "rainy season," so "wet season" is basically just slightly rainier. But there's a lot of sunshine, too. It's rare to go an entire day without sunshine, and it's rare to go an entire day without clouds.

Spirit's Reach
"Spirit's Reach" is what the Travelers and Omen Watchers call the giant mountain that overlooks their homes. (The Travelers can't see it, but they know of it through stories, as they used to live at the foot of Spirit's Reach). It's the equivalent of Mt. Kinabulu.

Spirit's Reach, due to its height, tracks about 20F / -6C lower that the mainland temperature-wise. And depending on your location on or beside the mountain, rain will greatly fluctuate due to protection against monsoons, and due to Spirit's Reach's topography.