Italy · Climate data from ISPRA (Istituto Superiore per la Protezione e la Ricerca Ambientale)
Naples dresses for a 14°C–31°C / 57°F–88°F window across the months we cover. Naples runs Sartoria Napoletana — the heritage hand-tailored Neapolitan suit, the world's most-cited menswear-tailoring tradition. Kiton (Arzano, founded 1968 by Ciro Paone — the recognized Neapolitan luxury menswear), Cesare Attolini (founded 1930 in Naples by Vincenzo Attolini — the inventor of the unstructured Neapolitan jacket and the spalla camicia 'shirt-shoulder'), Isaia (Casalnuovo di Napoli, since 1957 — the Capri-blue heritage Neapolitan menswear), Sartoria Dalcuore, Rubinacci (London Burlington Arcade with Naples ateliers — the heritage 1930s sartoria of the Marlborough Sporting House), Marinella (Riviera di Chiaia 287, since 1914 — the heritage Neapolitan tie shop, the tie of every Italian president and prime minister since the 1960s). Womenswear: Capri sandals (the heritage hand-stitched Capri leather sandals from the island, Canfora founded 1946 + Da Costanzo in Capri Town), the recognized Maliparmi prints. Naples is the most-conservative Italian dressing register at religious sites — strict shoulders + knees at Naples Cathedral + Cappella Sansevero (the heritage Veiled Christ chapel). Neapolitan dinner runs 20:30-23:00, later than Rome. Pompeii + Herculaneum + Capri + Amalfi day-trips define the visit.
Across the 4 months we cover: morning lows from 14°C / 57°F (May) to afternoon highs of 31°C / 88°F (August).
What to wear in Naples in May: ISPRA Capodichino data (24°C / 75°F afternoons, 14°C / 57°F mornings), shoulder season, and the Sartoria Napoletana register.
What to wear in Naples in June: ISPRA data (28°C / 82°F afternoons, 18°C / 64°F mornings), early summer + Pizza Village, and the Sartoria Napoletana register.
What to wear in Naples in July: ISPRA data (30°C / 86°F afternoons, 21°C / 70°F mornings), peak summer + Capri at peak, and the Sartoria Napoletana register.
What to wear in Naples in August: ISPRA data (31°C / 88°F afternoons, 21°C / 70°F mornings), Ferragosto + Italian fermeture, and the Sartoria Napoletana register.
The neighborhood you sleep in affects what reads as appropriate more than the calendar does. Naples's style scene anchors on the districts below — each leaf page calls out the local register (smart-casual, undone, technical, party) so the capsule maps to the streets you'll actually walk on.
Every leaf page on this hub is built from four data layers: climate normals from ISPRA (Istituto Superiore per la Protezione e la Ricerca Ambientale); named-authority etiquette and style references (Vogue, Condé Nast Traveler, Business of Fashion, the relevant local press); resident write-ups and traveler-forum reports for the failure modes tourists get wrong; and the editorial avatar pool that visualises each capsule on a person rather than a moodboard. Every DO names a reason. Every DON'T names a failure mode. We retest before each seasonal refresh — the editorial-modified date at the bottom of each leaf is the receipt.
Climate numbers come from ISPRA (Istituto Superiore per la Protezione e la Ricerca Ambientale) — the national meteorological service for Italy. Daily highs and lows, rain days, and daylight hours are 1991–2020 normals, read at the Naples Capodichino Airport station — the international standard, refreshed every decade. Capsule pieces and what-to-avoid notes are stress-tested against Naples resident write-ups, named-stylist sources where the city has a documented uniform (Vogue Paris under Emmanuelle Alt for Paris, Vogue Japan and i-D Tokyo coverage for Tokyo, NYMag's The Cut for New York), and the failure modes locals actually flag in city forums and traveler reports.
Because the morning-low to afternoon-high swing inside one Naples month already changes the silhouette — and the swing between months is much bigger than that. May mornings start at 14°C / 57°F; August afternoons hit 31°C / 88°F. A single packing list that tries to span both ends up wrong at both. Each month here is a different capsule, calibrated to the climate band that actually shows up on the ground.
4 so far: May, June, July, August. There is no cap on months per city — we are working through the calendar, and a month is only worth publishing when it has its own thesis, so no two adjacent months here share a capsule piece or an illustration. Months we haven't written yet are gaps in the schedule, not judgments that the month isn't worth covering.
The ISPRA (Istituto Superiore per la Protezione e la Ricerca Ambientale) figures cited on every Naples leaf are 1991–2020 normals, read at the Naples Capodichino Airport station — the international standard, refreshed every decade. We restate the numbers as raw averages on the leaf pages ("31°C / 88°F afternoons") rather than the year range, so the figures don't read as stale. The next normals refresh covers 2001-2030 and lands in 2031 — we'll bump every page when it does.
Editorial rule, enforced in CI: every DO line names a specific reason ("merino sinks under a trench so a damp morning doesn't show through your knit"); every DON'T names a specific failure mode ("suede stains the first time light drizzle catches it"). We ban "timeless," "elevate your style," "must-have," and "effortless" — they're the giveaway phrases of generic AI fashion writing. If a sentence could open any city's guide, it gets cut. Naples's guide reads like Naples, not like a packing-list aggregator.