Warm and humid weather slows the spread of COVID-19.

Article Effects of temperature and humidity on the daily new cases a...

Article Does temperature and humidity influence the spread of COVID-...

Preprint Effects of temperature and humidity on the spread of COVID-1...

Preprint High Temperature and High Humidity Reduce the Transmission of COVID-19

Our opinion on this was published recently in a BMC journal where the biology of the virus was critically looked into in relation to epidemiology of the disease; Article A close look at the biology of SARS-CoV-2, and the potential...

Thank you dear Arvind Singh for sharing.

Thank you dear Kamoru A. Adedokun for sharing your research.

Thank you mam Mila Ilieva

Md. Mahabubur Rahman I fully agree with Arvind Singh in that warm weather slows the spread of COVID-19. On the contrary, frigid temperatures favor the spread of the coronavirus, as can be seen by the recent outbreaks in meatpacking plants.

https://www.wired.com/story/why-meatpacking-plants-have-become-covid-19-hot-spots/

There is no evidence of a direct connection between climate change and the emergence or transmission of COVID-19 disease. As the disease is now well established in the human population, efforts should focus on reducing transmission and treating patients.

https://www.who.int/news-room/q-a-detail/q-a-on-climate-change-and-covid-19#:~:text=There%20is%20no%20evidence%20of,of%20other%20new%20diseases.

Thank you dear Anwar A. Abdulla . You have rightly said that we should focus on reducing transmission and treating patients. Other variables may help us to reduce the infection but so far there are no means to prevent the virus and treat the patients with specific medicine or vaccine we should concentrate on the preventive measures which are non-medical measures indeed.

Thank you sir Frank T. Edelmann .

Partially right, Warm and humid weather slows the spread of COVID-19.

Thank you dear Sujan Mahapatra

Md. Mahabubur Rahman we should not put too much hope in the effects of hot and humid weather on the transmission of the coronavirus. A much greater effect is the behavior of the people (e.g. large gatherings without distancing, wearing no masks etc.).

https://www.scientificamerican.com/article/summer-weather-wont-save-us-from-coronavirus/

Absolutely correct sir Frank T. Edelmann

Covid-19 spread in hot climate, but slowly compared to temperate weather

Kindly check this link

Will Warmer Weather Slow COVID-19 Spread? | Voice of America - English

https://www.voanews.com/covid-19-pandemic/will-warmer-weather-slow-covid-19-spread?amp

Will Warm Weather Slow Spread of Novel Coronavirus? – NIH Director's Blog

2 Jun 2020 · That's also clear from the rapid spread of COVID-19 that's ... Of course, climate is just one key factor to consider in ...

https://directorsblog.nih.gov/2020/06/02/will-warm-weather-slow-spread-of-novel-coronavirus/

Here is a closely related link which shows that weather is not a very important factor. After all, the corona virus also rapidly spreads on tropical regions such as Brasil.

https://directorsblog.nih.gov/2020/06/02/will-warm-weather-slow-spread-of-novel-coronavirus/

We have to accept the opinion of WHO, because they think globally and compile data from all over. If they come to the conclusion that weather affects the spread of the virus, I am sure they will announce that.

Dear Frank T. Edelmann thank you for sharing the useful links.

Thus far COVID-19 has spread worldwide in both cold and warm countries. The coronavirus knows no borders or limits!

Not at all. If it so, most of the african countries would be free from covid. Brazil is also a very hot and humid. Look at the number. Brazil is in 2nd position in terms of infected people.

Thank you dear Frank T. Edelmann for very short but immense significant comment " The coronavirus knows no borders or limits! ".

Thanks dear Raj K. Baral for update.

Thanks dear Gourab Das for the nice comments.

Few studies recently have shown some trends related to weather conditions and temperature. One of them is from MIT guys in which they have shown the role of warmer temperature in slowing the spread of the 2019-nCoV. However, still, there is ongoing research on this topic as no significant relationship is observed.

Please have a look at these articles:

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3556998

Article Association between ambient temperature and COVID-19 infecti...

I hope this helps you.

Thank you

Ankur

Thank you dear Ankur Srivastava for sharing the update.

We are still investigating this problem. For the most recent update concerning the role of environmental factors in the spread of Covid-19 please consult the following site

https://www.cebm.net/covid-19/environmental-weather-conditions-and-influence-on-transmission-of-sars-cov-2/

Thank you dear Janusz Pudykiewicz for sharing the recent update.

Experts recommend that you don’t assume hot summer months will be safer for the spread of the coronavirus:

https://www.webmd.com/lung/coronavirus-heat

This piece of news also corresponds the previous findings and observations. Thank you dear Frank T. Edelmann for sharing.

In India, the rapidity with which it has spread during the warm and humid months denies that it doesn't spread under aforesaid conditions. I think the actual validated results are yet to come.

Thank you sir Arbind K. Choudhary . But I am very inquisitive about the trend of spread of this virus in the coming winter as we are in the same region and experience almost same weather since there are opinions that in cold weather it survives for long.

Md. Mahabubur Rahman according to scientists, the coronavirus will come again in waves every winter:

https://www.nature.com/articles/d41586-020-02278-5

Thank you sir Frank T. Edelmann for your comments and attached link. We are passing very critical period though winter in my country is yet to come.

It seems that weather has no effect on covid-19, it is spreading in all type of weather.

Md. Mahabubur Rahman in our country, Germany, we currently have a heat wave with temperatures up to 38 °C, and the coronavirus virus infection counts are increasing!

Covid-19 is still very unpredictable sir Frank T. Edelmann .

Yes. It is unpredictable

Thank you dear Kins Yenoke

Md. Mahabubur Rahman COVID-19 has been around during the hot summer with increasing infection counts. It will certainly stay though the winter as well.

Based on my observations from the past eight months I can conclude that any attempt to explain the spread of Covid-19 by the temperature and humidity alone is futile. The nonlinear character of the transmission of the virus and its mutations call for a multivariate statistical analysis. It becomes evident that the principal factors in such an analysis will include wind speed, stratification of the planetary boundary layer, cloudiness, temperature, humidity, atmospheric pressure and precipitation.

As far as I’m aware there are multiple attempts but we are still waiting for a comprehensive summary.

The results could be surprising when we notice that the outbreak of Covid-19 in China was associated with unseasonably warm winter, contrary to the common notion about the limiting effects of a warm weather.

And last but not the least, the role of a solar cycle in the mutation of viruses should be also included, for details please consult the following study

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3593151l

The current weather data available on the web makes it particularly easy to look for any correlation of the Covid-19 parameters and the weather.

Covid-19 data

https://www.worldometers.info/coronavirus/

Weather in Germany

https://www.weather-forecast.com/maps/Germany

Janusz Pudykiewicz I fully agree with you. Thus far nobody has provided a good explanation if and how the spread of COVID-19 is influenced by weather conditions.

Dears Janusz Pudykiewicz and Frank T. Edelmann, I agree with you.

We find several papers that try to correlate temperature and the spread of Covid-19.

First all these papers were submitted before June. Authors believed that the number will drop during the summer.

Second, if we look at the current number of cases or deaths, we find these numbers exploded in several countries during the summer.

Just these two points are enough for me to say that the temperature alone does not really have a significant influence.

Thank you dear Ouaïl Ouchetto

Md. Mahabubur Rahman I got the impression that the coronavirus doesn't care about summer or winter.

Hello,

I am in agreement with Frank. Because we have warning situation right now in the southern provinces of Iran which are typical regions of having warm and humid climate. Unfortunately we have rising counts of corona-covid 19 infection in this area.

Best, Elaheh

Thank you so much dear Elaheh Daghighi

It should be mentioned that in our country, Germany, the politicians are afraid of the upcoming winter because people will gather more often at their homes, which could lead to increasing infection counts.

Thank you sir Frank T. Edelmann for sharing. In our country, though the winter is not so severe but there is a perception amongst the people that there may be increased spread in winter.

very true. this can be linked to the low rate recorded in most Arab and African countries

True, take, for instance, Africa with relatively warmer weather.

Good discussion

Hello dear colleagues,

Regarding your answers to this question, I can tell you that right now at this moment many cities in southern Iran specially in the province Khuzestan are announced as red regions by infection of Corona virus. These areas are known as typical humid and warm districts all over the year. But so far I think this is a very interesting discussion in which we can receive different answers.

In India the weather is hot now and highly humid, but we are witnessing 2nd wave at exponential rate.