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Show HN: The best time to visit any city

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Re: Show HN: The best time to visit any city

#32
I don't know if that Tableau map is going to scale to your desired traffic levels. It's a great enterprise tool, and yeah there are a few publications that leverage it, but my instincts tell me to avoid it on a mid-to-high traffic public page. I could be wrong. It's a difficult graph to replicate under fire, but not so hard that a day or two spent on it wouldn't produce a more performant version.

Re: Show HN: The best time to visit any city

#33
Weather is just one small piece of people's thought process when planning a vacation. But this tool is clearly all about weather... Perhaps finding a new way to describe it other than "the best time to visit" would avoid people coming down on the tool because they want to talk about more than the weather.

Re: Show HN: The best time to visit any city

#35
post #8

This seems really off: https://championtraveler.com/dates/best-time-to-visit-portla... It's says the daily highs in the summer are low 60s and that the driest months are in the middle of the winter.

Also looking at it for Madrid:

https://championtraveler.com/dates/best-time-to-visit-madrid...

It's completely wrong. Highs of 22c in August? Try 40c!

If you can fix the data then this will be super useful!

Also, maybe it would be a good idea to let people add their own tips (that people can then vote up/down), because it may be useful to know, for example, that in August in Madrid most bars, restaurants and shops are closed as everyone flees to the coast.

Re: Show HN: The best time to visit any city

#36
post #7
post #6

This is really neat! Only thoughts: it assumes one's definition of 'best' is 'best weather' and that in turn means it matches with what your algorithm decides is most pleasurable (which I think it does a pretty good job at). This is probably ok for most people but e.g. I like to travel to see nature and rare species of plants and whatnot, and that completely changes what 'best' is for me as it makes weather not one o…

Thank you! I am very glad others find the algorithm finding the "best times" to be accurate as well. This was definitely the hardest problem to solve as some places have two seasons, some have one, and I'm trying to find the best time on a scale relative to that place. I'm aware not everyone will be satisfied the "pleasant weather" parameters I used, but I don't think there's another way to give a range quickly. Perh…

I'm not sure it would be worth the extra clutter

Not likely. I mean, for like 99% the current parameters are ok, stuff is easy to use, why bother changing it :]

are you aware of any dataset that would help locate rare species

Not directly but there's sites like observation.org, not sure if they have APIs. Be warned though: it's a lot of information because there are so many species so making crawling through that handy and useful would require quite the interface.

Re: Show HN: The best time to visit any city

#37

Nice website, as I had always been looking for such travel website like this. On the travel-weather-map site, I searched for "San Francisco" and the first result was Argentina, and second was Costa Rica. I hope that the result is based on popularity and not based on alphabetical order.

The search needs some work :) Sadly it is not popularity-based at all.

Re: Show HN: The best time to visit any city

#39
post #7
post #6

This is really neat! Only thoughts: it assumes one's definition of 'best' is 'best weather' and that in turn means it matches with what your algorithm decides is most pleasurable (which I think it does a pretty good job at). This is probably ok for most people but e.g. I like to travel to see nature and rare species of plants and whatnot, and that completely changes what 'best' is for me as it makes weather not one o…

Thank you! I am very glad others find the algorithm finding the "best times" to be accurate as well. This was definitely the hardest problem to solve as some places have two seasons, some have one, and I'm trying to find the best time on a scale relative to that place. I'm aware not everyone will be satisfied the "pleasant weather" parameters I used, but I don't think there's another way to give a range quickly. Perh…

GBIF, https://www.gbif.org/, aggregates biodiversity occurrence data (observations, where specimens held in museums are from, etc).

Everything is available through an open API, although we don't index threat status. Perhaps we should.

Example: Ceratotherium simum, Southern White Rhinoceros [1]. (The threat status shown on the page is taken from an IUCN API.) The distribution data is available either as individual occurrence records [2], or as a summarized map vector tile [3], or a PNG map tile [4]. You would probably want to add a year range filter for recent observations.

You can also download e.g. everything with coordinates and crunch through the data yourself.

You will often find the coordinates have a low accuracy for endangered species, to prevent misuse. I won't comment on whether making such an app is a good idea or not.

(I am a software developer at GBIF.)

[1] https://www.gbif.org/species/2440880

[2] https://api.gbif.org/v1/occurrence/search?has_coordinate=tru...

[3] https://api.gbif.org/v2/map/occurrence/density/0/0/0.mvt?tax...

[4] https://api.gbif.org/v2/map/occurrence/density/0/0/0@1x.png?...

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