Detailed weather forecast for Cajamarca, Peru: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Cajamarca
today🌤️22°💧 0.6 mm
Sun🌧️22°💧 1 mm
Mon🌧️20°💧 1.5 mm
Tue🌧️19°💧 4.4 mm
Wed🌧️20°💧 2.9 mm
Thu🌧️22°💧 5.3 mm
Fri🌧️20°💧 10.2 mm
Sat🌧️24°💧 2.8 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 Cajamarca, the forecast high is 19°C. Typical daytime temperatures at this time of year range from 22°C to 24°C, so it will be exceptionally cool. It is cooler than 97% of similar days.
22°Ccooler than usual
usually 22°C–24°C
cooler than 77% of similar days
night: exceptionally warmrain: exceptionally wetwind: lighter than usual
From 1981 to 2025, the 5-11 Sept period averaged 23°C by day. The coolest year was 1984 (21°C) and the warmest was 2024 (26°C). The current forecast averages 21°C - lower than in 96% 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Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window.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 - Cajamarca
Cajamarca 30 & 45-day weather - long-range outlook
Next 15 days · forecast
22°
around 14° at night · days with rain: 12
Weeks 3-4 · avg for September
21°
around 6° at night · rain chance 16%
Weeks 5-7 · avg for October
21°
around 8° at night · rain chance 39%
The 30 & 45-day outlook for Cajamarca: the next 15 days are a numerical forecast updated daily - on average 22° by day and 14° at night. Further out we rely on multi-year climate averages: around 21° in September, and about 21° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Cajamarca
Saturday5 September 2026
🌤️22°a few clouds
sunrise 06:13 · sunset 18:13 · night 13° · evening 17° · rain 0.6 mm · humidity 34% · wind 4 m/s · clouds 11%
Sunday6 September 2026
🌧️22°light rain
sunrise 06:12 · sunset 18:12 · night 14° · evening 16° · rain 1.04 mm · humidity 38% · wind 3 m/s · clouds 40%
Monday7 September 2026
🌧️20°light rain
sunrise 06:12 · sunset 18:12 · night 13° · evening 14° · rain 1.46 mm · humidity 43% · wind 4 m/s · clouds 69%
Tuesday8 September 2026
🌧️19°light rain
sunrise 06:11 · sunset 18:12 · night 13° · evening 14° · rain 4.38 mm · humidity 49% · wind 3 m/s · clouds 61%
Wednesday9 September 2026
🌧️20°light rain
sunrise 06:11 · sunset 18:12 · night 13° · evening 15° · rain 2.87 mm · humidity 44% · wind 3 m/s · clouds 49%
Thursday10 September 2026
🌧️22°light rain
sunrise 06:10 · sunset 18:12 · night 14° · evening 15° · rain 5.33 mm · humidity 33% · wind 3 m/s · clouds 27%
Friday11 September 2026
🌧️20°moderate rain
sunrise 06:10 · sunset 18:12 · night 14° · evening 14° · rain 10.15 mm · humidity 49% · wind 3 m/s · clouds 57%
Saturday12 September 2026
🌧️24°light rain
sunrise 06:09 · sunset 18:12 · night 14° · evening 16° · rain 2.83 mm · humidity 32% · wind 3 m/s · clouds 10%
Sunday13 September 2026
🌧️24°moderate rain
sunrise 06:09 · sunset 18:11 · night 15° · evening 15° · rain 7.22 mm · humidity 35% · wind 3 m/s · clouds 32%
Monday14 September 2026
🌧️20°light rain
sunrise 06:08 · sunset 18:11 · night 14° · evening 16° · rain 6.39 mm · humidity 48% · wind 3 m/s · clouds 94%
Tuesday15 September 2026
🌧️22°light rain
sunrise 06:07 · sunset 18:11 · night 14° · evening 15° · rain 1.53 mm · humidity 39% · wind 3 m/s · clouds 47%
Wednesday16 September 2026
🌧️21°light rain
sunrise 06:07 · sunset 18:11 · night 14° · evening 16° · rain 0.84 mm · humidity 40% · wind 4 m/s · clouds 33%
Thursday17 September 2026
🌧️22°light rain
sunrise 06:06 · sunset 18:11 · night 14° · evening 15° · rain 0.52 mm · humidity 36% · wind 4 m/s · clouds 100%
Friday18 September 2026
🌧️24°light rain
sunrise 06:06 · sunset 18:11 · night 14° · evening 15° · rain 1.35 mm · humidity 33% · wind 4 m/s · clouds 21%
Saturday19 September 2026
🌧️21°light rain
sunrise 06:05 · sunset 18:10 · night 13° · evening 15° · rain 2.95 mm · humidity 41% · wind 3 m/s · clouds 65%
UV index in Cajamarca - is it safe to sunbathe?
Today the UV index in Cajamarca is 9 (very high) - unprotected fair skin can burn in about 25 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.
Air quality and smog in Cajamarca
Air quality in Cajamarca is currently very good. Fine particulate PM2.5: 2.4 µg/m³, PM10: 2.6 µg/m³.
City
PM2.5 (µg/m³)
PM10 (µg/m³)
Air quality
Cajamarca
2.4
2.6
very good
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-04, 20:00).
Cajamarca weather through the year
Upcoming public holidays in Peru: Battle of Angamos — 8 October · All Saints Day — 1 November · Immaculate Conception — 8 December.