You’ve got to love Kingston. Honestly, it’s one of those places where you can wake up to the most perfect, Instagram-worthy blue skies and then find yourself sprinting for cover before the coffee even wears off. If you are looking at the weather for kingston today, Sunday, January 18, 2026, you are probably seeing that "mostly sunny" label and thinking you're in the clear.
Well, sorta.
The current situation as of tonight is actually pretty chill. It’s 75°F out there right now, which feels more like 79°F because the humidity is sitting at a heavy 85%. There is a light breeze coming in from the east at just 2 mph. It's clear with some periodic clouds—the kind of night that makes you want to stay outside just a little bit longer.
But here is the thing.
Tomorrow (well, technically "today" since we are looking at the 18th) is a bit of a mixed bag. We are looking at a high of 86°F and a low of 71°F. It sounds perfect, right?
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The Daytime Humidity and Rain Game
During the day, the forecast is calling for "mostly sunny" conditions. Don’t let that fool you into leaving your umbrella at home. There is a 45% chance of rain during the daylight hours. That is almost a coin flip. When it rains in Kingston in January, it’s usually not a miserable, all-day drizzle. It’s more of a "the sky opened up for twenty minutes and now everything is steam" kind of vibe.
The wind is going to be coming from the northeast at 3 mph. Basically a whisper.
Humidity is expected to hover around 82% for the day. If you’ve spent any time here, you know that 86°F with that much moisture in the air doesn't feel like a dry heat. It’s the kind of weather where your hair starts doing its own thing the moment you step out the door.
What Happens When the Sun Goes Down
Once we hit the evening, things calm down significantly. The nighttime condition is "partly cloudy," and that rain chance drops down to a much more manageable 20%. It’s actually going to be a pretty nice night to be out, provided you don't mind the 71°F low.
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Compared to the historical averages for January in Kingston, this is pretty much par for the course. Usually, we see highs around 84°F this time of year, so we are running just a tiny bit warmer than the "normal" stats you’d see from places like the Meteorological Service.
Environment Canada or local Caribbean weather hubs often point out that January is technically the "dry" season, but 45% precipitation chance tells a different story for this specific Sunday.
Why This Matters for Your Plans
If you are planning to hit the coast or do some walking around the city, do it early. The "mostly sunny" part of the day is your best friend. But once you hit that mid-afternoon window, that 45% chance of rain is going to loom large.
Wait, which Kingston are we talking about?
It’s a classic mix-up. If you’re looking for the Kingston with the snow squalls and the -3°C temperatures—the one in Ontario—you are in the wrong place. Today in this Kingston, we are dealing with tropical heat and 86°F. No snow shovels required here. Just sunscreen and maybe a light raincoat that you can stuff into a bag.
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If you’re heading out, wear breathable fabrics. Seriously. Linen or moisture-wicking gear is basically the only way to survive 82% humidity without looking like you just walked out of a swimming pool.
Keep an eye on the sky toward the northeast. Since that's where the 3 mph wind is coming from, that’s likely where any surprise clouds are going to roll in from.
Pack a small umbrella or a lightweight poncho in your bag before leaving the house this morning. Since there's a 45% chance of rain during the day, you'll want to be prepared for a quick downpour between the sunny breaks.