In this document
You will learn what the Solargis Forecast service is and gather detailed information about its subscription plans and specifications.
Overview
Solargis Forecast API service provides access to solar resource and climate data, and some calculated parameters such as PVOUT from the present moment up to 14 days ahead (image below) displays the Forecast data timeline in relation to the data sources and the Monitor service.
The data provided by Solargis Forecast API is sourced from a combination of high-resolution satellite observations and advanced atmospheric models, ensuring robust and reliable information for solar resource assessment and forecasting. You can read more about the data sources and quality here.
Solargis Forecast API service has dedicated subscription plans to accommodate your needs.
Subscription to Solargis Forecast API consists of multiple API services, each covering different use cases and providing different datasets. For each API service, a separate API access is required, which includes an access token with its validity period and usage limits. For more details, refer to the subscription plans below.
Note: The Forecast API shares an endpoint with the Monitor service and you can learn about how to set it up in our API documentation.
Solargis Forecast API service plans & specifications
Subscription plan: Forecast Basic
You may access the API up to four times within any 24-hour period, with at least 6 hours between each request to ensure updated datasets.
Example request times could be 00:00, 06:00, 12:00, and 18:00; however, maintaining a minimum 6-hour interval between calls is more important than the exact timing.
The Forecast Basic API provides:
Short-term forecasts for days 1 through 7.
Nowcast and intraday data for the current day.
Access to data from | Access to data to | Update rate | Maximum time resolution |
|---|---|---|---|
DAY 0 | DAY 7 | 4x Per Day | Hourly |
Subscription plan: Forecast Professional
Forecast Professional consists of two API services: Rapid update intraday forecast and short- to medium-term forecast.
You can access the API for intraday nowcasting and forecasting every 5, 10, or 15 minutes, depending on your region. Please check the map below to confirm the update frequency for your area.
Rapid updates are available from the current time up to approximately 3 hours ahead, providing frequently refreshed data within this window.
For forecast periods beyond 3 hours ahead, data is updated four times per day (every 6 hours). No rapid updates are available for these longer timeframes.
Recommended: Data beyond HOUR 3 should be interpreted as updated 4x per day (i.e. every 6 hours), with no rapid updates.
Not recommended: Expecting data beyond HOUR 3 to update more often than every 6 hours.
Access to data from | Access to data to | Update rate | Maximum time resolution |
|---|---|---|---|
DAY 0 | DAY 0 | 5 minutes |
You can access the API up to four times per day (within any 24-hour period), with a minimum interval of 6 hours between each request to obtain updated datasets.
Example request times could be 00:00, 06:00, 12:00, and 18:00; however, maintaining a 6-hour gap between calls is more important than the exact timing.
The service provides forecasts for days 1 through 14, with updates occurring four times per day (every 6 hours).
Access to data from | Access to data to | Update rate | Maximum time resolution |
|---|---|---|---|
DAY 1 | DAY 14 | 4x Per Day | 5 minutes |
Rapid updates
Rapid update is a shortcut term for sub-hourly update rate. The precise update rate depends on the geographical location, since the update rate of the relevant satellite mission determines it. Refer to the map below for Rapid Updates update rates.
