Santanyí on September 21: A mild autumn day to recharge

Santanyí on September 21: A mild autumn day to recharge

The morning in Santanyí began with a soft light and the typical smell of the sea and freshly brewed coffee. The sky remained mostly blue, with only a few clouds passing by briefly. Exactly the right kind of weather to wander spontaneously through the market at the Plaça Major or to drink a cup of coffee at the harbor and listen to the boats clinking at their masts.

Temperatures and perceived climate

The thermometers started in the early morning at a pleasant 24 °C. During the day the mercury climbed to around 27 °C, in the afternoon values were about 26 °C and the night also stays mild at approximately 25 °C. Practical: no heavy jacket needed, but for the evening a light sweater or thin cardigan is recommended.

How the warmth feels: the perceived temperature in the morning is about 24–25 °C. In direct sun it can locally reach up to 29 °C – ideal for sun lovers, less ideal for those prone to heat-related issues, as in Clouds, mild air and a relaxed pace: Santanyí on 19 September 2025. A hat and sunscreen are therefore not a bad idea; for advice see NHS sun safety advice.

Air pressure, humidity and wind — what is happening outside

The air pressure remained stable at around 1013 hPa, humidity at approximately 65 %. A steady southwesterly wind (direction 225°) blew at about 4.5 m/s, gusts reached up to 5.6 m/s. A blessing for sailors and kite flyers: enough wind for fun, but not so strong that anything gets out of hand.

Clouds, chance of rain and activities

Cloud cover stayed low — estimated at 15–20 % — and the chance of rain was practically 0 %. That means: a picnic on a finca, an ice cream at the harbor or a short detour to the nearby Cala Santanyí are possible without the risk of bad weather. And yes, the Plaça Major filled up at noon with voices, the clattering of market stalls and the occasional ringing of the church clock.

I was walking along the Passeig around half past eight: a jogger in a bright shirt, two happy dogs chasing each other, and a fisherman checking his nets. Such scenes — the gentle lapping of the waves, the cries of seagulls, the distant hum of a boat engine — often say more about the weather than all the numbers.

Why this day feels good — and what it means for Santanyí

Days like these mild autumn ones are small energy boosters on Mallorca. For business owners at the harbor this means: more guests on the terraces; for locals: relaxed errands and more time to chat at the Plaça. For day-trippers it's the perfect opportunity to enjoy the nature around Santanyí without the oppressive summer heat — unlike the brief showers described in Santanyí on September 1: Fresh Breeze and Short Showers – Summer Bids a Relaxed Farewell.

A bit of irony on the side: no rain, so leave the umbrella at home — but don't forget the sunscreen, unlike Santanyí on October 14: Rain, mild air and café days.

Practical tips for the day

Stay hydrated, drink enough water, especially if you walk or cycle. For the late evening a light layer is recommended, and if you plan to go out to sea: the gusts are moderate, but as always exercise caution when mooring. And if you happen to pass the Plaça Major — stop for a moment, a coffee and a piece of cake go well with the light autumn breeze.

Conclusion: Santanyí offers a calm, friendly climate on September 21 — perfect for recharging energy without breaking into a sweat. Enjoy the day and the small everyday moments that are so characteristic here.