Antigua sits at about 1,530 metres (the municipal-seat altitude in SEGEPLAN’s development plan for the municipality), and over 1996-2025 its average daily highs ran between 24 and 27 °C by month in the reanalysis series our month-by-month guide uses, with average lows between 14 and 17 °C. This page answers a narrower question than a normal forecast: when in the day the rain is forecast. It takes the forecast for Antigua for about the next five days, splits each day’s rain chance into morning, afternoon and evening, and names the 3-hour step with the highest chance, so you can see which part of the day to plan outdoors.
The week, by part of the day
Pulled Oct 6, 2026 at 13:00 Guatemala time from MET Norway and OpenWeather.
Weather data provided by OpenWeather
Data from MET Norway (CC BY 4.0); processed by us| Day | High / low | Rain chance 6am–noon | Noon–6pm | 6pm–midnight | Wettest 3-hour step | Rain total |
|---|---|---|---|---|---|---|
| Tue Oct 6 | 24°C (75°F) / 17°C (63°F) | — | 100% | 76% | 3 PM step | 3.2 mm (from 1 PM) |
| Wed Oct 7 | 25°C (77°F) / 15°C (59°F) | 1% | 91% | 71% | 3 PM step | 7 mm |
| Thu Oct 8 | 25°C (77°F) / 16°C (61°F) | 0% | 100% | 50% | noon step | 6.3 mm |
| Fri Oct 9 | 23°C (73°F) / 16°C (61°F) | 33% | 100% | 100% | 3 PM step | 22.5 mm |
| Sat Oct 10 | 26°C (79°F) / 16°C (61°F) | 10% | 100% | 100% | 3 PM step | 20.6 mm |
Point 14.5586, -90.7295 (the same Antigua point our national forecast uses). MET Norway's temperatures are for 1,540 m there; MET gives hourly steps until Oct 8, 11 PM, then 6-hourly. Rain chance come from OpenWeather's forecast steps, stamped every 3 hours (midnight, 3 AM, 6 AM and so on, Guatemala time); each cell is the highest value among the steps stamped inside that window. A forecast, not a measurement. Temperatures in °C (°F), wind in km/h (mph).
How to read it. The rain chance comes from OpenWeather, whose forecast moves in 3-hour steps (in Guatemala time they are stamped at midnight, 3 AM, 6 AM and so on). Each rain-chance column is the highest probability among the steps stamped inside that block of hours, not an average, so 80% in the afternoon column means the noon or the 3 PM step is forecast at 80%. The wettest 3-hour step is the step between 6 AM and 9 PM with the highest chance; when two steps tie, it shows the earlier one. The rain total is MET Norway’s forecast amount for the whole day, midnight to midnight; for today it counts only from the first forecast hour, which the cell shows in brackets.
Planning around it
- Walking the town, ruins and markets: pick the block with the lowest figure for the day.
- Day trips and hikes from Antigua: check the destination’s own forecast as well. The Acatenango summit forecast is a different place, 2,400 metres higher; Lake Atitlán’s is on Lake Atitlán weather.
- Volcano activity: Fuego’s eruption status, CONRED alerts and ash advisories are on volcano eruption today. A forecast of rain says nothing about ash.
- Whole-trip timing: for which months are wetter, drier, warmer or cooler, use the best time to visit Guatemala, month by month.
Sunrise and sunset for Antigua for the week are on sunrise and sunset times in Guatemala. Getting to Antigua is covered in getting to Antigua, and what to do there in things to do in Antigua.
Where the forecast comes from
The table combines two forecasts, read once a day by our data pipeline for a fixed point in Antigua: MET Norway’s locationforecast (temperatures and rain totals) and OpenWeather’s 5-day, 3-hour forecast (rain chance). The stamp above the table shows when they were read. If a day’s read fails, the previous file stays in place: the page keeps showing that forecast, drops any days that have already passed when the page is rebuilt, and the stamp turns red once the forecast is more than 26 hours old. Guatemala’s official weather service is INSIVUMEH, which publishes national forecasts and warnings; for official alerts see Guatemala weather alerts.
Frequently Asked Questions
What is the weather in Antigua Guatemala this week?
The table on this page is a forecast for Antigua for about the next five days, read once a day. For each day it shows the high and low and the rain total from MET Norway, and from OpenWeather the highest chance of rain in the morning (6 AM to noon), afternoon (noon to 6 PM) and evening (6 PM to midnight) and the 3-hour step with the highest chance.
Does it rain all day in Antigua in the rainy season?
Look at the three rain-chance columns for the days you are there: they show whether the forecast puts the rain in the morning, the afternoon or the evening. A day with a low morning figure and a high afternoon one is a day to do the walking early. Month-by-month averages are in our best-time-to-visit guide.
When is the rainy season in Antigua?
Our best time to visit Guatemala guide shows each month’s share of the year’s rain for Antigua, computed from 30 years of reanalysis data. This page is for the week in front of you, not the season.
Is the forecast for the centre of Antigua?
It is for the fixed point 14.5586 N, 90.7295 W, the same point our national forecast uses for Antigua. MET Norway reported its terrain height at that point as 1,540 m on 25 September 2026, and its temperatures are for that height; the note under the table prints the current value. A forecast is a model estimate, not a measurement from a station in the town.
