Best: March-May (spring warmth and blooming flowers), October-November (crisp autumn air, Orange Isle fireworks/music festivals). Avoid: July-August (one of the four major furnaces, so muggy it's suffocating!), December-February (damp cold with no heating, the South's magic attack). Special recommendation: Saturday night fireworks at Orange Isle every week (summer), experience Changsha's new consumer culture at Wenheyou/Chayan.
Airport: Huanghua Airport (CSX) is 25km from the city center; Metro Line 6 takes about 50 minutes (7 yuan), and the maglev takes 20 minutes to Changsha South Station. Taxi costs 80-110 yuan. Metro: 7 lines cover major commercial districts and attractions; pay by scanning the QR code with Alipay. High-speed rail: Changsha South Station is a Beijing-Guangzhou/Shanghai-Kunming hub, convenient for going anywhere. In the city: Didi is cheap and easy to use. Shared e-bikes are everywhere (Meituan/Hello). You can cycle along both banks of the Xiang River.
Spice level: Hunan cuisine is defined by its fragrant heat—generally spicy, though not as numbing as Chongqing's mala. Stinky tofu, spicy crayfish, and steamed fish head with chopped chili are the pinnacle of heat. You can request "mild." Must-eat: stinky tofu (Black Classic/Wenheyou), spicy crayfish/spicy crab, steamed fish head with chopped chili, chili stir-fried pork (Fei Da Chu), sugar-oil rice cakes (sweet), gua liang fen (scraped jelly noodles), sister rice balls, Chayan Yuese (must-drink!). Food streets: Taiping Old Street (concentrated), Pozi Street (Huo Gong Dian), Dongguashan (late-night snack mecca), Super Wenheyou (immersive experience). Changsha people's love of spice is nationally famous—if you can't handle spice, remember to say "no spice" rather than "mild."
2 days: D1 Yuelu Mountain + Yuelu Academy + Aiwan Pavilion + Hunan University + Orange Isle (Mao Zedong statue) + evening stroll in Taiping Old Street; D2 Hunan Provincial Museum (Mawangdui Han Tomb!) + IFS International Finance Center + Super Wenheyou + nightlife on Jiefang West Road. 3-4 days: add a 1-2 day trip to Zhangjiajie/Fenghuang Ancient Town (reachable by high-speed rail). Budget (per person): budget type 600-1200 yuan / comfort type 1500-2500 yuan / light luxury type 3000-5000 yuan. Changsha's prices are affordable, with extremely high cost-effectiveness.
Stir-fried pork with chili = Hunan people's comfort food. The first criterion for judging a Hunan restaurant: if the chili stir-fried pork isn't done well, there's no need to taste the other dishes. The pork must be skin-on pork belly (streaky fat and lean, rendered until the pork fat aroma comes out), the chilies must be Hunan local screw chilies/Zhangshugang chilies (thin skin, thick flesh, moderate heat), fermented black beans + garlic cloves + light soy sauce to enhance the flavor. Core technique: dry-fry the chilies first (no oil! Fry until the skin is slightly charred and blistered like tiger skin, removing the raw pungency while retaining the fragrant heat), then put the pork slices in the wok and fry until the fat renders and the edges are slightly charred, then add the pre-fried chilies + fermented black beans + garlic + light soy sauce and toss evenly. In the finished dish, the chilies taste better than the meat—the chilies have absorbed the pork fat's aroma and the soy sauce's savory saltiness; the fried chilies have reduced heat and enhanced fragrance. One bite of chili, one bite of rice = a Hunan person's dopamine. Changsha's Fei Da Chu went crazy selling because of this dish—selling over 1 million portions a year. This dish tells you a truth: the highest-level comfort food is never about expensive ingredients, but about the right ingredients and the right heat.