I have been using Sensirion SHT21 and SHT25 for many years, e.g. in strawberry foil tunnels with LoRa (not LoRaWAN) together with soil moisture sensors for irrigation control. You should pay attention to the following aspects:
At high humidity usually all sensors have less accuracy, some may even fail after long term exposure to high humidity (I remember a project in the tropical rain forests where we had quite some problems)
A good radiation shield may be required which can be quite expensive (more expensive that the whole electronics). In the foill tunnels I use a simple tube which is sufficient for this application.
See for long term drift in the datasheet of the sensor you choose.
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