Our last one was a little bit bigger than 80mm, and generated a scream from HID that only cats and small children could hear.
Something to be aware of, especially if you are new to the area. July and August tend to be peak months for nocturnal activity by the common yellow scorpion (Buthus occitanus). Adults are 60-80 mm in length. You may find them inside houses. These are often males, seeking females. They are not aggressive as such, but can deliver an extremely painful sting if accidentally trodden on - they can also hide inside shoes, so it is no mere myth that it's a good idea to shake them out before putting your foot in! Likewise, not a good idea to wander around barefoot at night. Pets are also at risk if they mistake them for something to play with. They are a pretty interesting animal, in fact. One curiosity is that the power of their venom appears to vary according to location. In general, the Spanish populations are nowhere near as toxic and dangerous as the same species in Morocco (where fatalities occur quite often), though the population around Tabernas/Sorbas is, on medical evidence, far more potent than those of others in Almeria. They eat insects and spiders, mostly. Another curiosity is that they glow under UV light. The hyaline layer in the exoskeleton is what reacts to sources such as black light or moonlight, and it is the chemical compounds in this that causes the scorpion's body to glow. I used a small blacklight here to illustrate this property. There are several competing theories as to WHY they do this... no-one knows yet, for sure. Meanwhile, just be careful while wandering around at night. There is no need to kill them on sight - I just put a plastic or glass jar over them, slide some fairly stiff paper underneath, then invert. Later on, I safely release out in the campo, where they belong.