Detailed weather forecast for Chimaltenango, Guatemala: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Chimaltenango
today🌧️25°💧 5.3 mm
Sun🌧️25°💧 2.6 mm
Mon🌧️25°💧 9 mm
Tue🌧️19°💧 9.3 mm
Wed🌧️24°💧 2 mm
Thu🌧️24°💧 1.1 mm
Fri🌧️25°💧 1.3 mm
Sat🌧️25°💧 0.3 mm
Forecast vs 1991-2020 climate normal
How does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
NASA POWER
Tuesday 8 Sept in Chimaltenango, the forecast high is 19°C. Typical daytime temperatures at this time of year range from 24°C to 26°C, so it will be exceptionally cool. It is cooler than 99% of similar days.
25°Cnear normal
usually 24°C–26°C
night: exceptionally coolrain: typical rainfallwind: lighter than usual
From 1981 to 2025, the 5-11 Sept period averaged 25°C by day. The coolest year was 1993 (22°C) and the warmest was 1985 (30°C). The current forecast averages 24°C - lower than in 84% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
14-day forecast - Chimaltenango
Chimaltenango 30 & 45-day weather - long-range outlook
Next 15 days · forecast
23°
around 15° at night · days with rain: 14
Weeks 3-4 · avg for September
25°
around 16° at night · rain chance 68%
Weeks 5-7 · avg for October
24°
around 16° at night · rain chance 44%
The 30 & 45-day outlook for Chimaltenango: the next 15 days are a numerical forecast updated daily - on average 23° by day and 15° at night. Further out we rely on multi-year climate averages: around 25° in September, and about 24° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Chimaltenango
Saturday5 September 2026
🌧️25°light rain
sunrise 05:51 · sunset 18:12 · night 15° · evening 17° · rain 5.28 mm · humidity 50% · wind 3 m/s · clouds 56%
Sunday6 September 2026
🌧️25°light rain
sunrise 05:51 · sunset 18:12 · night 14° · evening 18° · rain 2.61 mm · humidity 47% · wind 3 m/s · clouds 90%
Monday7 September 2026
🌧️25°moderate rain
sunrise 05:52 · sunset 18:11 · night 15° · evening 17° · rain 9.03 mm · humidity 44% · wind 3 m/s · clouds 43%
Tuesday8 September 2026
🌧️19°light rain
sunrise 05:52 · sunset 18:10 · night 15° · evening 16° · rain 9.33 mm · humidity 76% · wind 3 m/s · clouds 100%
Wednesday9 September 2026
🌧️24°light rain
sunrise 05:52 · sunset 18:09 · night 14° · evening 16° · rain 2.03 mm · humidity 43% · wind 4 m/s · clouds 67%
Thursday10 September 2026
🌧️24°light rain
sunrise 05:52 · sunset 18:09 · night 14° · evening 16° · rain 1.08 mm · humidity 39% · wind 3 m/s · clouds 6%
Friday11 September 2026
🌧️25°light rain
sunrise 05:52 · sunset 18:08 · night 15° · evening 17° · rain 1.26 mm · humidity 47% · wind 3 m/s · clouds 19%
Saturday12 September 2026
🌧️25°light rain
sunrise 05:52 · sunset 18:07 · night 15° · evening 18° · rain 0.3 mm · humidity 37% · wind 3 m/s · clouds 5%
Sunday13 September 2026
🌧️25°light rain
sunrise 05:52 · sunset 18:06 · night 15° · evening 17° · rain 5.79 mm · humidity 43% · wind 3 m/s · clouds 3%
Monday14 September 2026
🌧️25°moderate rain
sunrise 05:52 · sunset 18:06 · night 15° · evening 17° · rain 9.24 mm · humidity 50% · wind 3 m/s · clouds 45%
Tuesday15 September 2026
🌧️23°light rain
sunrise 05:52 · sunset 18:05 · night 15° · evening 17° · rain 6.06 mm · humidity 61% · wind 2 m/s · clouds 63%
Wednesday16 September 2026
🌧️22°moderate rain
sunrise 05:52 · sunset 18:04 · night 16° · evening 17° · rain 13.47 mm · humidity 72% · wind 2 m/s · clouds 86%
Thursday17 September 2026
🌧️21°heavy rain
sunrise 05:52 · sunset 18:03 · night 16° · evening 17° · rain 29.73 mm · humidity 81% · wind 1 m/s · clouds 97%
Friday18 September 2026
🌧️19°moderate rain
sunrise 05:52 · sunset 18:03 · night 17° · evening 17° · rain 29.01 mm · humidity 91% · wind 1 m/s · clouds 100%
Saturday19 September 2026
🌧️22°heavy rain
sunrise 05:52 · sunset 18:02 · night 16° · evening 17° · rain 31.86 mm · humidity 73% · wind 3 m/s · clouds 85%
UV index in Chimaltenango - is it safe to sunbathe?
Today the UV index in Chimaltenango is 10 (very high) - unprotected fair skin can burn in about 20 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.
Chimaltenango weather through the year
Upcoming public holidays in Guatemala: Independence Day — 15 September · Revolution Day — 20 October · All Saints' Day — 1 November.