Guatemala City Future Trends
Guatemala · North America · Trend-based projections to 2050
This page projects Guatemala City's weather to 2030, 2040 and 2050, fitting one trend line per variable to its own 50-year ERA5 record. Around it sits a statistical range: temperature, tropical days and frost days get a Best and Worst scenario; precipitation and sunshine hours get a Low and High estimate instead, since more or less rain or sun isn't inherently better or worse. An R² score shows how closely the trend fits the record, so a lower R² means more year-to-year noise. Which variable in Guatemala City shifts hardest, and how firmly the record backs that line, is laid out per trajectory below.
Data through August 16, 2026.
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Frequently asked questions about Guatemala City's projected trends
How warm will Guatemala City be in 2050?
Extrapolated from Guatemala City's own record since 1976, the average daytime high in 2050 works out at roughly 24.7°C, down 0.6°C from 2025. This is a straight-line projection of measured weather data, not a climate model or a scenario-based forecast.
How certain is the temperature projection for Guatemala City?
The 2050 range runs from 24.2°C to 25.3°C. That spread comes from the 95% confidence interval on the trend line's own slope, so the noisier Guatemala City's record, the wider the band. The trend accounts for 0% of the variation between years; the rest is ordinary year-to-year swing.
How many days above 30°C will Guatemala City get in 2050?
The trend line lands on roughly 11 days above 30°C a year in 2050, against 4 in 2025. These are the days that set peak cooling demand, so this figure matters more for grid planning and building design than the annual average above.
Will Guatemala City still get frost in 2050?
Guatemala City already recorded no frost days in 2025, and the trend line does not change that. Frost is not a useful measure here, though the heat figures above are.
Is Guatemala City getting wetter or drier by 2050?
The trend line lands on roughly 1559mm of precipitation a year in 2050, against 1133mm in 2025, so wetter. An annual total says little about distribution though: the same rainfall can arrive in shorter, harder bursts, and that is what loads drains and water storage.
Will Guatemala City get more sunshine by 2050?
The trend line lands on roughly 3862 sunshine hours a year in 2050, against 3953 in 2025, so less sun. Sunshine hours bear directly on rooftop solar yield, though heat works against it at the same time: a panel loses efficiency at high temperatures.
