If you grew up in a Cantonese household, you didn't check the weather on your phone. You listened for your mother shouting about 打風, you felt the 翳焗 humidity press against the back of your neck, and you learned very early that when the sky turns the colour of dirty tea, you run home. Cantonese weather vocabulary is not just technical — it is poetic, superstitious, and absurdly specific. There are words for the kind of damp that makes your walls sweat and words for a rain so heavy it insults the sky.
Welcome to Volume 103 of our Cantonese Dictionary. Today we're covering 16 everyday weather words that every HongKonger uses without thinking — the vocabulary of typhoon signals, muggy summers, dripping ceilings, and the first crisp day of autumn. Some of them have direct products in our collection, because the way we talk about weather is the way we dress for it.
Rain and Storms: The Hong Kong Default Setting
Rain is so central to the Hong Kong experience that a single word (雨 jyu5) doesn't do the job. Cantonese uses verbs, numbers, and even dog excrement to describe exactly how wet it is. If you want to go deeper on HK's wild weather culture after this, our neighbouring post on Hong Kong's rain-soaked neon streets captures the mood perfectly.
1. 落雨
lok6 jyu5 — Jyutping romanisation
Meaning: To rain; it's raining.
Explanation: Mandarin says 下雨 ("rain falls down"), but Cantonese uses 落 ("drop/fall"), which feels more active, more like something the sky does to you. The verb 落 is the all-purpose "coming down" word — 落雪 for snow, 落冰雹 for hail.
2. 落狗屎
lok6 gau2 si2 — Jyutping romanisation
Meaning: To rain extremely heavily — literally "falling dog poop".
Explanation: This is Cantonese's answer to English's "raining cats and dogs", only cruder and funnier. Use it when the rain is so hard the drops explode on the pavement and umbrellas flip inside out. Perfect typhoon-day complaint.
3. 打風
daa2 fung1 — Jyutping romanisation
Meaning: A typhoon is hitting; typhoon weather.
Explanation: Literally "hit wind". When HongKongers say 打風, they aren't describing meteorology — they're describing the whole experience: the taped-up windows, the instant-noodle hoarding, the WhatsApp screenshots of the weather bulletin, the hoping-for-a-day-off ritual.
4. 風球
fung1 kau4 — Jyutping romanisation
Meaning: Typhoon warning signal (literally "wind ball").
Explanation: The name comes from the days when the Royal Observatory hoisted physical cone and ball-shaped shapes on a mast to warn ships. Even though digital bulletins replaced the shapes decades ago, HongKongers still ask 「幾多號風球?」 — "What number signal is up?" — because 掛八號 ("Signal 8 hoisted") means schools and offices close.
5. 雷公
leoi4 gung1 — Jyutping romanisation
Meaning: Thunder — literally "Grandpa Thunder" or the Thunder God.
Explanation: In Chinese folk belief, 雷公 is a bird-beaked deity who strikes down the wicked with his drum. Cantonese grandmothers still half-jokingly say 「雷公劈你!」 ("May Thunder God strike you!") when a child is being naughty.
6. 行雷
hang4 leoi4 — Jyutping romanisation
Meaning: Thunder rolling — literally "walking thunder".
Explanation: That beautifully onomatopoeic rumble before a storm, when the thunder seems to walk across the sky rather than crack. Cantonese grandparents used to say if you have your lights on during 行雷 you'll scare the thunder away.
7. 閃電
sim2 din6 — Jyutping romanisation
Meaning: Lightning (literally "flashing electricity").
Explanation: A straightforward word, but it doubles as slang for anything blindingly fast — a "lightning-quick" ping-pong smash, a swift roundhouse kick, a flash crypto trade. Expect to hear 閃電快 ("lightning fast") as often as the weather version.
Humidity, Heat and the "Baked" Feeling
Hong Kong summers aren't just hot — they are structurally oppressive. Cantonese reaches for cooking words to describe the air. When your T-shirt sticks to your spine before you've even left the lobby, that's not weather; that's cuisine. And when the air really gets to you, our 熱氣 Yeet Hay heavyweight tee is literally named after the Cantonese body-heat concept this climate forces on everyone.
8. 焗
guk6 — Jyutping romanisation
Meaning: Stuffy, muggy — literally "baked".
Explanation: 焗 is a cooking verb for roasting in a closed pot (焗飯, 焗蛋). Cantonese transfers it to any sealed, airless feeling: a lift with the aircon broken, a bedroom where the window won't open, a city on an August afternoon.
9. 翳焗
ai3 guk6 — Jyutping romanisation
Meaning: That specifically oppressive, pre-thunderstorm, can't-breathe humidity.
Explanation: 翳 means obstructed or stifling. Stack it on 焗 and you get the feeling of air that is physically pressing on your chest — the hour before a thunderstorm, when even the pigeons stop moving.
10. 太陽伯伯
taai3 joeng4 baak3 baak3 — Jyutping romanisation
Meaning: "Grandpa Sun" — a child's affectionate name for the sun.
Explanation: Cantonese personifies the sun as a kindly old man. 太陽伯伯 appears in children's songs, kindergarten crafts, and the way aunties coax reluctant toddlers out of the house: "Grandpa Sun's waiting for you!" Even grown-ups still use it affectionately when the sun finally comes out after a week of grey.
The Cantonese "Return of South Wind" and Other Seasonal Mysteries
A few weather words don't translate because the climate they describe barely exists outside the Pearl River Delta. The famous 回南天, where ceilings start weeping in March, is unique enough that Mandarin speakers from the north often don't believe it's real until they experience it. Our 著多件衫 Wear More Layers hoodie exists precisely because Cantonese parents say this phrase to their adult children in every one of these seasonal shifts, forever.
11. 回南天
wui4 naam4 tin1 — Jyutping romanisation
Meaning: The late-winter / early-spring moment when warm, wet southern air rushes back in and condenses everywhere.
Explanation: Walls sweat, floors become ice rinks, mirrors fog up, mould grows overnight. Hongkongers combat it with dehumidifiers, newspaper under windows, and a shared sigh. It happens for a few weeks every spring, usually February–March.
12. 返風
faan1 fung1 — Jyutping romanisation
Meaning: The wind turns cold — the first cold front of autumn or winter.
Explanation: Literally "the wind returns". Cantonese mums use it as a verb: 「返風喇,著多件衫!」 is the official seasonal transmission, broadcast on repeat the minute temperatures drop below 20°C.
13. 入秋
jap6 cau1 — Jyutping romanisation
Meaning: Entering autumn.
Explanation: In HK, 入秋 is a cultural moment, not a calendar date. People wait for it, text each other about it, start eating hotpot and 煲 soup for it. The first morning you step outside and the air isn't sticky — that's 入秋.
14. 乾爽
gon1 song2 — Jyutping romanisation
Meaning: Dry and crisp — the opposite of 焗.
Explanation: The highest praise Cantonese weather can earn. 乾爽 describes those rare perfect October mornings when the air feels thin, your laundry dries on the line, and your mother happily opens all the windows.
15. 冷親
laang5 can1 — Jyutping romanisation
Meaning: To "catch a chill" — the Cantonese belief that getting cold itself makes you sick.
Explanation: 親 is a verbal suffix that means "to get caught by" — 冷親 is "cold-caught". This is why every Cantonese parent on earth will tell you to 著多件衫 (wear more layers) the second temperature drops. Modern science is skeptical. Cantonese mums are not.
16. 彩虹
coi2 hung4 — Jyutping romanisation
Meaning: Rainbow.
Explanation: After the storm, the reward. 彩虹 shows up in Cantopop lyrics constantly — the arc that proves everything can get better. It is also the name of Choi Hung Estate in Kowloon, one of HK's most-Instagrammed public housing blocks.
Why Weather Words Carry Culture
Every language records what its speakers survive. In Guangdong and Hong Kong, people survive humidity, typhoons, dripping walls, and the exact moment the first dry autumn wind arrives. These 16 words are not translation projects — they are the shape of a climate that shaped a people. The next time your Cantonese mum texts you about 返風, understand that she isn't nagging. She's doing what Cantonese mums have done for a thousand years: watching the sky for you.
If this volume made you smile, flip through Vol. 102 on money words and Vol. 101 on food texture words. Our full Cantonese slang streetwear collection turns the words you grew up with into pieces you can actually wear.
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