Monthly weather averages & travel planning

North America › 🇲🇽 Mexico › Guadalajara
Updated: March 2026
December is a excellent time to visit Guadalajara (8/10). With 10 daily sunshine hours and only 1 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 12th sunniest of the year in Guadalajara. Beach and outdoor-focused visitors will find December ideal, though hotel prices reflect demand and popular sites get crowded by mid-morning. January offers a similar profile at lower hotel rates if dates are flexible. The main practical note: Guadalajara's popular sites are busiest between 10am and 3pm regardless of season. Arriving at opening time or after 4pm makes a significant difference to the experience. Planning tips: book accommodation at least 6-8 weeks ahead, as popular hotels fill quickly during December. Purchasing skip-the-line tickets for major attractions in advance saves meaningful time. If you have flexibility, arriving a few days before or after peak weekends reduces both crowds and prices noticeably.
Planning a trip to Guadalajara in December? Days warm to 24°C on average while evenings hold at 11°C, giving you a clear sense of what to pack. The month delivers roughly 10 hours of sunshine per day and 7mm of rainfall spread across 1 wet days, so there is plenty of fair weather to work with.
24°C
75°F
Avg High
11°C
52°F
Avg Low
1 days
7 mm total
Rain Days
10h
per day avg
Sunshine
78%
Humid
Humidity
The 13°C day-to-night swing is large enough to require a deliberate layering strategy, what works at noon will be noticeably cold by 10pm. At 78% humidity, the 24°C daytime high feels 2-4°C warmer in practice: quick-dry fabrics and shade-seeking between noon and 3pm are the sensible response. The UV index of 3 is low, meaning sun exposure is minimal concern and sunscreen is largely optional. Winds are calm at an average 11 km/h, so wind-chill is not a factor in planning your clothing. In Fahrenheit: 75°F average high, 52°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Packing for Guadalajara in December means dressing for 24°C days and 11°C evenings. A light cotton tee with a casual overshirt works well at 24°C, the overshirt doubles as a layer for air-conditioned venues. Evenings drop 13°C to around 11°C, a notable shift that catches underprepared visitors off guard. Pack a dedicated evening layer. Comfortable walking trainers are the versatile choice for both outdoor sightseeing and indoor venues. At 78% average humidity, quick-dry synthetic or bamboo fabrics dry overnight and stay comfortable longer than cotton.
Local tip: Layers are more practical than a single heavy garment in Guadalajara. The day-to-evening temperature shift rewards packing a versatile mid-layer you can add or remove as conditions change.
December has no major festivals or public holidays in Guadalajara, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
Based on 24°C average highs and 1 rainy days
In December, Guadalajara sits in the dry season corridor, as the ITCZ shifts away from the region and trade winds bring drier, more stable air. This produces reliably sunny days reaching 24°C, with lower humidity than the wet months. Overnight lows of 11°C offer a pleasant reprieve from the midday heat. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate, wear sunscreen. UV 6-7: High, hat and SPF 30+ essential. UV 8-10: Very High, limit midday exposure. UV 11+: Extreme, seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry, skin and throat may feel parched. 40-60%: Comfortable, ideal for most people. 60-80%: Sticky, light breathable fabrics recommended. Above 80%: Muggy, heat feels more intense; quick-dry clothing is essential.
Guadalajara in December
December ranks 12th sunniest of the year in Guadalajara, with an average 10 daily sunshine hours. The driest months are March, April, and December. May is the hottest month (32°C avg high); January is the coolest (24°C). From here, temperatures fall 0°C into January. Compared to last month (November: 25°C high, 3 rain days), December is cooler and drier. December is one of the least sunny months, but that often means lower prices and fewer fellow tourists.
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 24°C | 10°C | 2 | 10h | View |
| February | 26°C | 12°C | 2 | 11h | View |
| March | 29°C | 14°C | 1 | 12h | View |
| April | 31°C | 16°C | 1 | 12h | View |
| May | 32°C | 17°C | 4 | 12h | View |
| June | 29°C | 18°C | 17 | 11h | View |
| July | 26°C | 17°C | 24 | 10h | View |
| August | 26°C | 17°C | 23 | 10h | View |
| September | 26°C | 16°C | 20 | 10h | View |
| October | 26°C | 15°C | 9 | 10h | View |
| November | 25°C | 13°C | 3 | 10h | View |
| December | 24°C | 11°C | 1 | 10h | View |
January
2 rain days, 10h sun
February
2 rain days, 11h sun
March
1 rain days, 12h sun
April
1 rain days, 12h sun
May
4 rain days, 12h sun
June
17 rain days, 11h sun
July
24 rain days, 10h sun
August
23 rain days, 10h sun
September
20 rain days, 10h sun
October
9 rain days, 10h sun
November
3 rain days, 10h sun
December
1 rain days, 10h sun
Data Sources for Guadalajara
Climate normals represent 30-year averages (1991-2020). Individual years may vary.