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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Metro Report weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Feeling under the weather means you’re mildly unwell, often with cold or flu symptoms. The phrase, dating from the 1800s, likely refers to the discomfort of being at sea in stormy weather. Check the live forecast above for conditions that might affect your health.
What does “under the weather” actually mean?
It’s a common idiom for feeling sick, tired or low in energy, but not seriously ill. You might say “I am feeling under the weather” to describe a headache, sore throat or general malaise. The under the weather meaning is always temporary – a day or two of feeling off-colour. For a precise under the weather synonym, try “unwell” or “out of sorts”. An under the weather example: “She stayed home because she was feeling under the weather.”
Where does the phrase come from?
The under the weather origin is nautical. In the 19th century, sailors who felt seasick or ill were sent below deck – literally under the weather – to recover. It’s one of many under the weather idioms that have drifted into everyday speech. If you use it in an under the weather sentence, it’s always about a mild, passing illness.
Can “under the weather” mean something else?
Occasionally it’s used for a hangover or emotional low, but the under the weather meaning sick is the standard. In modern British English it almost always refers to physical illness, not sadness.
Is “under the weather” formal or informal?
Informal but polite. You can use it at work or with friends. It’s softer than saying “I’m ill” and implies you’ll probably recover quickly. Avoid it in medical notes or official sick leave forms.
How do I use it in a sentence?
Simply say “I’m feeling under the weather” or “He’s a bit under the weather”. For an under the weather example: “The child was under the weather so we kept him home from school.” No need to add “today” – the phrase itself implies a short-term state.
For the latest conditions where you live, see our UK weather hub or check Birmingham Weather. If you’re planning a trip, our 10 Day Weather Forecast UK can help you decide whether to wrap up warm.