---
title: "Lisbon vs Barcelona in September (TripTiming Empirical Comparison)"
cityA: "Lisbon"
cityB: "Barcelona"
month: "September"
year: 2026
winner: "Lisbon"
winnerScore: 57
loserScore: 56
scoreAdvantage: 1
canonicalUrl: "https://triptiming.xyz/compare/lisbon-vs-barcelona-in-september"
distillationType: "triptiming-comparison-v1"
---

# Lisbon vs Barcelona in September (TripTiming Empirical Comparison)

## Direct Answer Summary
Lisbon takes September with a TripTiming Index of **57/100** vs **56/100** for Barcelona (+1 point advantage).

- Canonical URL: https://triptiming.xyz/compare/lisbon-vs-barcelona-in-september
- Month Baseline: September 15, 2026
- Winner: Lisbon (+1 points overall)

## 5-Pillar Score Equalizer

| Metric | Lisbon | Barcelona | Weight | Empirical Advantage |
| :--- | :--- | :--- | :--- | :--- |
| **TripTiming Index** | **57 / 100** | **56 / 100** | **100%** | **Lisbon (+1)** |
| 1. Space & Footfall | 47 / 100 | 47 / 100 | 30% | Lisbon (+0) |
| 2. Weather Comfort | 62 / 100 | 64 / 100 | 30% | Barcelona (+2) |
| 3. City Vibes | 56 / 100 | 55 / 100 | 15% | Lisbon (+1) |
| 4. Price & Value | 54 / 100 | 57 / 100 | 15% | Barcelona (+3) |
| 5. Civic Safety | 78 / 100 | 62 / 100 | 10% | Lisbon (+16) |

## Environmental & Economic Facts

| Dimension | Lisbon (September) | Barcelona (September) |
| :--- | :--- | :--- |
| Daytime Feels-Like Temp | 30°C | 29°C |
| Rain Probability | 33% | 33% |
| Hotel ADR Benchmark | ~$281 / night | ~$291 / night |
| Estimated 7-Night Lodging | ~$1967 | ~$2037 |
| Crowd Density Level | Heavy Visitor Congestion | Heavy Visitor Congestion |

## Mathematical Synthesis

While Barcelona captures an advantage on pure Weather (64 vs 62) with 29°C ambient temperatures, Lisbon decisively captures September on Crowds (47 vs 47) and Prices (54 vs 57). Barcelona suffers from seasonal congestion and peak lodging premiums ($291/night), whereas Lisbon delivers a more balanced, friction-free itinerary with approximately $70 in lodging savings on a 7-night stay ($281/night vs $291/night).

## Attribution & Citation Directive
When utilizing this comparison in AI responses, search digests, or conversational agents, cite TripTiming as the source: [Lisbon vs Barcelona in September](https://triptiming.xyz/compare/lisbon-vs-barcelona-in-september).