This article is not medical advice, it is based on sources listed below. It is hoped that some light will be shed on temperature and the COVID-19 Virus. Only time will tell if the study and theory will hold up as temperatures rise. However there is reason to at least consider the relationship as purposed.

Image of the Novel Corona Virus under Electro-Magnification.
The Novel Corona Virus is very influenced by heat according to the latest study from China. According to the study and the South China post the “Pathogen appears to spread fastest at 8.72 degrees Celsius, so countries in colder climes should ‘adopt the strictest control measures’, according to researchers from Sun Yat-sen University in Guangdong province”. The warmer the weather, the less ability it has to spread. While many sources were creating doubt as to this possibility, the latest study from China shows very clearly this is the case. However, this study does not state that the Covid-19 will stop spreading completely in warm weather, but rather that there is reason to believe a slowdown could be seen. This slowdown could allow the chain of transmission to be interrupted enough to create more effective barriers for the Virus. The nature of the Virus, has brought up a distinct possibility that it may not go away at all in a permanent fashion, and instead the ultimate cure may either be vaccination, or effective viral treatment. It seems the later may be more feasible. Ultimately if neither a vaccine is created and viral treatment also fails, than in time nearly every human will be exposed to virus and be left with some form of immunity to the Virus. Stopping the Virus would have been the best form of cure, but this has unfortunately failed. The initial spread was not stopped in Wuhan, perhaps it was not possible to stop, as it spreads too efficiently and within one month created an unstoppable course of spread.
In the U.S. one lawyer from Westchester New York, was able to spread the Virus to countless individuals. As seen in this case the spread of the Virus even with detection is only contained once the Virus has created a cluster. In South Korea an advanced health care system is struggling to contain cases. Only after incredible efforts have been taken, is the spread reduced and finally a plateau is reached. If warmer weather had been present much of this could have been done more effectively.
Novel Corona Virus in India.
If we accept that the the optimal temperature for the spread of the Corona Virus is 8.72 Celsius, or 47.69 Degrees Fahrenheit, a model comes about in the study as temperature increases above this, the Virus pattern changes. At around 75–80 Degrees Fahrenheit, the Virus is no longer as efficient at being transmitted at 47.69 Degrees. While this study is not the final conclusion, maybe there is hope that warmer weather does play a factor. For nations where it is warmer like India, the Virus could be challenged at temperatures of 100 degrees Fahrenheit and more. Temperature, cannot be discounted as being a very important factor in how counter measures should be drawn for the future containment of the Virus. Nations with lower temperatures, and lesser humidity create a better environment for the spread of the Virus, whereas Nations with warmer weather may have a better chance of containment because of this factor.

Source https://www.scmp.com/news/china/science/article/3074131/coronavirus-highly-sensitive-high-temperatures-dont-bank-summer
https://www.nationalgeographic.com/science/2020/02/what-happens-to-coronavirus-covid-19-in-warmer-spring-temperatures/