I'm looking forward to my first 200km Audax (the Thanet Platinum) which is now a month away.
From the event listing there is 2079m of climbing so about 10m climb per km distance.
I'm not sure I trust that figure, tbh - it's what RideWithGPS gave me when I plotted the route. It feels a bit hillier than that, but that could be because the hilly bits are concentrated into fairly short bursts with flatter sections in between. So in fact the climb out of Hastings is closer to 40m elevation per km for 4km.
Don't want to put you off, though - it's really not tough by audax standards, and the flatter bits are useful for recovery between the hilly bits. The route profile is on RWGPS, if you want to see what it looks like:
https://ridewithgps.com/routes/22394232As far as the weather is concerned, chances are it will be a headwind for the outward leg, so the first half of the ride might feel tougher than it actually is. And if you're lucky, the wind won't decide to change direction when you get to the halfway point...
Is this likely to be enough / am I overthinking it? TIA.
Yeah, you'll be fine. It will feel like a challenge at times, but isn't that the whole point? It wouldn't be fun if it were too easy.