Weather Forecast – London To Paris

I asked ChatGPT to give me a weather forecast summary of the 3 days and locations along the route. I’m hoping it stays dry.

Here’s a projected 3-day route forecast based on your itinerary (note: weather forecasts always have uncertainty, especially a few days ahead).

🌦️ Text Summary

Day 1 — Fri 26 Sept: Putney → Portsmouth → Overnight Ferry

In London (Putney) expect low clouds and fairly cool conditions, highs around 16 °C.

Friday	61°50°	Low clouds
Saturday	64°50°	Considerable cloudiness with a shower in places in the afternoon
Sunday	63°49°	Mostly sunny

By the time you reach Portsmouth later in the day, conditions should be partly sunny to mixed, with highs ~15-16 °C.

Overnight ferry crossing: skies may clear somewhat, though residual cloudiness could hang on over the Channel (forecast models don’t always resolve over-water detail well).

Day 2 — Sat 27 Sept: Ouistreham → via Lisieux, Bernay → Evreux

Morning in Ouistreham: rather cloudy, cool start, perhaps some breaks. High ~18 °C.

Saturday	64°53°	Rather cloudy
Sunday	64°52°	Sunny to partly cloudy

Through Lisieux / Bernay: expect mostly cloudy skies; occasional light showers cannot be ruled out in the afternoon.
By late day in Évreux: still predominantly cloudy, with highs ~16 °C.

Saturday	61°47°	Mostly cloudy
Sunday	65°45°	Clouds giving way to some sun

Day 3 — Sun 28 Sept: Evreux → via Noisy-le-Roi, Café du Bois → Eiffel Tower (Paris)

Morning in Évreux: clouds will gradually give way to some sunshine, mild and improving.
Through the suburbs toward Paris: a mix of sun and clouds—pleasant for cycling.
At the Eiffel Tower by 16:00: mostly cloudy but dry, temperatures around 18 °C.

Overall, you’re looking at mild, cool days with a fair bit of cloud cover, occasional showers possible on Day 2, and improving clarity by Day 3.