> For the complete documentation index, see [llms.txt](https://docs.betterbuilding.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.betterbuilding.io/user-guide/workflows/moisture/moisture-faqs/hygrothermal-weather-data-sources.md).

# Hygrothermal Weather Data Sources?

Our weather data is mostly derived from a number of public sources that have been compiled at <https://climate.onebuilding.org/>. Where alternative weather data is required, please contact submit a [Support Ticket](/support-and-training/support-tickets.md).

For hygrothermal modelling, it is recommended that relative humidity [External Conditions](broken://pages/HvOU6qRqQNCHIfHrGqjG) are manually increased by at least 10% for all simulations to replicate a [Wind-driven rain](broken://pages/oysoLMpGQ3HzU6PGOAgd) source. The specific weather file is stated within the results Inputs, under the Conditions Tab.&#x20;

<figure><img src="/files/IGEnC7A5Oqa4YGELMLFy" alt=""><figcaption></figcaption></figure>

## Australian Data&#x20;

Australian Data is based on "Typical Meteorological Year" (or typical weather conditions over a year) and "Representative Meteorological Year" (typical weather conditions over a year, but with more emphasis on representing a specific location unique climate characteristics.) data.&#x20;

<figure><img src="/files/ioReX9IakdAu2XgeR2SN" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
Grab Australian Climate Files [here](https://climate.onebuilding.org/WMO_Region_5_Southwest_Pacific/AUS_Australia/index.html)
{% endhint %}

## New Zealand Data&#x20;

New Zealand Data is based on "Typical Meteorological Year" (or typical weather conditions over a year) for 18 locations provided by  NIWA (New Zealand National Institute of Water & Atmospheric Research).

<figure><img src="/files/IYv9ZzU9usMuTZFYfgrB" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
Grab New Zealand Climate Files [here](https://climate.onebuilding.org/WMO_Region_5_Southwest_Pacific/NZL_New_Zealand/index.html)
{% endhint %}


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.betterbuilding.io/user-guide/workflows/moisture/moisture-faqs/hygrothermal-weather-data-sources.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.