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San Juan Weather forecast for tomorrow

Peru Cajamarca 7.3°S · 78.5°W

Tomorrow weather outlook — San Juan

San Juan, Cajamarca, Peru

Tomorrow will bring somewhat unsettled weather. No significant precipitation is forecast. Temperatures will rise from 4°C (39°F) in the morning to a comfortable 22°C (72°F) later in the day.

Humidity tomorrow will be moderate, around 70%. The UV index tomorrow will be very high, so sun protection is recommended. The sun will rise at 06:27 and set at 18:09. Daylight will last 11:42.

Fairly mild water conditions will continue, with readings around 21°C (70°F).

Tomorrow, 2026-07-05 Sunny
Sunny
11°
Precipitation expected tomorrow · up to 0.9 mm · peak around 17:00
Max / Min
22° / 4°
Wind
3.2 m/s ESE
Humidity
70%
Pressure
761 mmHg

Hourly forecast · San Juan

12 AM
Clear
1 AM
Partly Cloudy
2 AM
Partly Cloudy
3 AM
Partly Cloudy
4 AM
Partly Cloudy
5 AM
Partly Cloudy
6 AM
Partly Cloudy
7 AM
Partly Cloudy
8 AM
Sunny
12°
9 AM
Sunny
15°
10 AM
Sunny
17°
11 AM
Sunny
19°
12 PM
Sunny
21°
1 PM
Sunny
22°
2 PM
Sunny
22°
3 PM
Patchy rain nearby
22°
4 PM
Patchy rain nearby
20°
5 PM
Moderate rain at times
17°
6 PM
Sunny
12°
7 PM
Patchy rain nearby
8 PM
Clear
9 PM
Clear
10 PM
Clear
11 PM
Clear

San Juan — tomorrow expected clear and dry, temperature from +4°C (+39°F) to +22°C (+72°F).

Visibility

10 km
Excellent

Visible to horizon — clean air

Water

19.9 °C
Comfortable

Pleasant for swimming

Air Quality

Open
Good

Air is clean — safe to walk and exercise outside

Main pollutant: O₃

PM2.5
1.9 µg/m³
PM10
2 µg/m³
O₃
45.8 µg/m³
NO₂
2.2 µg/m³
SO₂
0.6 µg/m³
CO
183 µg/m³

Pollen & allergens

Open
Moderate level

Grass

Possible mild symptoms in sensitive people. Carry allergy drops when walking outdoors.

Main allergen: Grass

Mugwort 30 grains/m³
Hazel 0 grains/m³
Alder 0 grains/m³
Birch 0 grains/m³
Oak 0 grains/m³
Ragweed 0 grains/m³

Sun & Moon

11h 42m Daylight
Sunrise 06:27 AM
Zenith 12:18 PM
Sunset 06:09 PM
11h 41m Moon above horizon
Moonrise 10:55 PM
Moonset 10:36 AM
Golden hour 06:27 AM – 06:57 AM · 05:39 PM – 06:09 PM
Blue hour 06:04 AM – 06:27 AM · 06:09 PM – 06:32 PM
Astronomical twilight 05:12 AM → 06:04 AM · 06:32 PM → 07:24 PM
Tomorrow Last Quarter · 60%
New Moon 12 July

San Juan (Peru). Interactive weather map for tomorrow with switchable layers: temperature, precipitation, wind, and pressure. Coordinates: -7.30°, -78.50°. Timezone: America/Lima.

Settlements within a 20 km radius