Recommend Coastal Weather Station - Amateur use

Davis weather stations are very reliable. I have one of these since 2009 and it's still going strong. I had to replace a humidity sensor some years ago but it was straightforward and easy enough to do.

I don't live near the coast so I can't specifically say if they're durable enough for coastal conditions but I'd guess they are well up to it.

They're not the cheapest but the quality is there.

https://www.weathershop.co.uk/davis-vantage-vue-weather-station-with-weatherlink-console-6242uk

Ecowitt stations will fit your budget. Look, I agree Davis stations are great, but for your budget if you want a station to give you instant pretty reliable data, try these. You can get them on Amazon or direct. Now, as to coastal site, obviously salt will be a issue, you can engage with ecowitt direct and ask. I'd imagine they are fine. I've had one since the covid lock down, must be five years now. The temperature sensor gave up the ghost this year but I talked to them online, gave them the station type, and they recommended the replacement. Only cost about fifteen euro and not terribly difficult to replace yourself. All good again.

Cool, get it mounted correctly and set her up, you'll have your own station online quickly.

Rain and wind are very hard to get right as an amateur as both need very specific exposure to get right. You need a wide open space with little obstructions which are very hard to get unless you can dedicate a largish open field to it. I would take rain and wind measurements as being indicative and comparative (to previous readings you have made in the same area) but still very much worthwhile. You are still recording your local weather after all.