San Bernardino weather in January
In January, San Bernardino sees average daytime highs of 33°C and overnight lows near 23°C, with 124 mm of rain across 12.9 wet days and about 13.4 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.
Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 42% of the time in January, and the air most often feels oppressive.
Daylight stretches from about 13 h 36 min at the start of January to 13 h 12 min by month's end. Set against the rest of the year, January is San Bernardino's 8th-clearest and 10th-windiest month. For the whole year in context, see San Bernardino's year-round climate.
- Daytime high
- 33°
- 1st warmest
- Overnight low
- 23°
- 12th coldest
- Rainfall
- 124 mm
- 12.9 wet days
- Daylight
- 13 h 24 min
- 6:16 AM – 7:41 PM
- Cloud cover
- 53%
- 8th clearest
- Wind
- 11 km/h
- 10th windiest
- Solar energy
- 6.68 kWh/m²
- Travel score
- 3.5
- out of 10
San Bernardino is district of Paraguay.
- Density
- 41/km²
- people per km²
- Founded
- 1881
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in January
Day-to-day highs hold fairly steady near 33°C through the month.
A typical January day in San Bernardino reaches about 33°C in the afternoon and slips back to 23°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 36°C. Set against its neighbours, January runs about 1°C warmer than December and on par with February.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 |
| Avg low (°C) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 33 | 23 |
| 2 | 33 | 23 |
| 3 | 33 | 23 |
| 4 | 33 | 23 |
| 5 | 33 | 23 |
| 6 | 33 | 23 |
| 7 | 33 | 23 |
| 8 | 33 | 23 |
| 9 | 33 | 23 |
| 10 | 33 | 23 |
| 11 | 33 | 23 |
| 12 | 33 | 23 |
| 13 | 33 | 23 |
| 14 | 33 | 23 |
| 15 | 33 | 23 |
| 16 | 33 | 23 |
| 17 | 33 | 23 |
| 18 | 33 | 23 |
| 19 | 33 | 23 |
| 20 | 33 | 23 |
| 21 | 33 | 23 |
| 22 | 33 | 23 |
| 23 | 33 | 23 |
| 24 | 33 | 23 |
| 25 | 33 | 23 |
| 26 | 33 | 23 |
| 27 | 33 | 23 |
| 28 | 33 | 23 |
| 29 | 33 | 23 |
| 30 | 33 | 23 |
| 31 | 33 | 23 |
How January really feels in San Bernardino
Once humidity and wind are folded in, January averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in January is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
San Bernardino weather by month
How January compares with the rest of the year at a glance. January is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 33° / 23° | 124 | 12.9 | 13.4 | 3.5 |
| Feb | 32° / 23° | 142 | 12.3 | 12.9 | 3.7 |
| Mar | 31° / 22° | 109 | 10.3 | 12.2 | 4.6 |
| Apr | 28° / 19° | 142 | 8.9 | 11.4 | 6.2 |
| May | 24° / 16° | 130 | 8.8 | 10.8 | 7.2 |
| Jun | 23° / 14° | 97 | 8.3 | 10.5 | 7.1 |
| Jul | 23° / 13° | 82 | 7.7 | 10.6 | 7.4 |
| Aug | 26° / 15° | 70 | 6.6 | 11.1 | 7.7 |
| Sep | 27° / 16° | 113 | 8.6 | 11.8 | 6.9 |
| Oct | 29° / 19° | 196 | 12.1 | 12.6 | 5.3 |
| Nov | 30° / 20° | 177 | 11.1 | 13.2 | 4.8 |
| Dec | 32° / 22° | 163 | 12.7 | 13.5 | 3.9 |
Cloud cover in January
The sky is clear or mostly clear about 42% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 44%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 57 | 57 | 57 | 57 | 56 | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 57 | 56 | 57 | 57 | 56 | 57 | 56 | 57 | 56 | 56 | 56 | 56 | 55 | 55 | 55 | 55 | 55 | 55 | 55 |
| Cloudier (%) | 43 | 43 | 43 | 43 | 44 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 44 | 43 | 43 | 44 | 43 | 44 | 43 | 44 | 44 | 44 | 44 | 45 | 45 | 45 | 45 | 45 | 45 | 45 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 57 | 43 |
| 2 | 57 | 43 |
| 3 | 57 | 43 |
| 4 | 57 | 43 |
| 5 | 56 | 44 |
| 6 | 57 | 43 |
| 7 | 57 | 43 |
| 8 | 57 | 43 |
| 9 | 57 | 43 |
| 10 | 57 | 43 |
| 11 | 57 | 43 |
| 12 | 57 | 43 |
| 13 | 57 | 43 |
| 14 | 56 | 44 |
| 15 | 57 | 43 |
| 16 | 57 | 43 |
| 17 | 56 | 44 |
| 18 | 57 | 43 |
| 19 | 56 | 44 |
| 20 | 57 | 43 |
| 21 | 56 | 44 |
| 22 | 56 | 44 |
| 23 | 56 | 44 |
| 24 | 56 | 44 |
| 25 | 55 | 45 |
| 26 | 55 | 45 |
| 27 | 55 | 45 |
| 28 | 55 | 45 |
| 29 | 55 | 45 |
| 30 | 55 | 45 |
| 31 | 55 | 45 |
Chance of precipitation in January
San Bernardino gets around 124 mm of rain over 12.9 wet days in January. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 42% and peaks near 44% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 44 | 43 | 43 | 43 | 43 | 42 | 42 | 42 | 41 | 41 | 41 | 41 | 42 | 42 | 42 | 42 | 43 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 42 |
| Rain chance (%) | |
|---|---|
| 1 | 44 |
| 2 | 43 |
| 3 | 43 |
| 4 | 43 |
| 5 | 43 |
| 6 | 42 |
| 7 | 42 |
| 8 | 42 |
| 9 | 41 |
| 10 | 41 |
| 11 | 41 |
| 12 | 41 |
| 13 | 42 |
| 14 | 42 |
| 15 | 42 |
| 16 | 42 |
| 17 | 43 |
| 18 | 42 |
| 19 | 42 |
| 20 | 42 |
| 21 | 42 |
| 22 | 42 |
| 23 | 42 |
| 24 | 42 |
| 25 | 42 |
| 26 | 42 |
| 27 | 42 |
| 28 | 42 |
| 29 | 42 |
| 30 | 42 |
| 31 | 42 |
Humidity in January
Most of January feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the oppressive band about 58% of days. Sticky, muggy-or-worse air turns up on roughly 90% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Comfortable (%) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 |
| Humid (%) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 |
| Muggy (%) | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 |
| Oppressive (%) | 57 | 56 | 55 | 55 | 54 | 53 | 52 | 52 | 51 | 52 | 52 | 54 | 55 | 55 | 56 | 58 | 59 | 61 | 62 | 62 | 64 | 64 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 63 | 63 |
| Miserable (%) | 11 | 12 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 12 | 11 | 11 | 10 | 9 | 8 | 7 | 6 | 6 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 0 | 3 | 9 | 20 | 57 | 11 |
| 2 | 0 | 3 | 9 | 20 | 56 | 12 |
| 3 | 0 | 3 | 9 | 20 | 55 | 13 |
| 4 | 0 | 3 | 9 | 20 | 55 | 13 |
| 5 | 0 | 3 | 9 | 20 | 54 | 14 |
| 6 | 0 | 3 | 9 | 21 | 53 | 14 |
| 7 | 1 | 3 | 9 | 21 | 52 | 14 |
| 8 | 1 | 3 | 9 | 21 | 52 | 14 |
| 9 | 1 | 3 | 9 | 22 | 51 | 14 |
| 10 | 1 | 3 | 9 | 22 | 52 | 13 |
| 11 | 1 | 3 | 9 | 22 | 52 | 13 |
| 12 | 1 | 3 | 8 | 22 | 54 | 12 |
| 13 | 1 | 2 | 8 | 23 | 55 | 11 |
| 14 | 1 | 2 | 8 | 23 | 55 | 11 |
| 15 | 1 | 2 | 8 | 23 | 56 | 10 |
| 16 | 1 | 2 | 7 | 23 | 58 | 9 |
| 17 | 1 | 2 | 7 | 23 | 59 | 8 |
| 18 | 1 | 1 | 7 | 23 | 61 | 7 |
| 19 | 1 | 1 | 7 | 23 | 62 | 6 |
| 20 | 1 | 1 | 7 | 23 | 62 | 6 |
| 21 | 0 | 1 | 7 | 23 | 64 | 5 |
| 22 | 0 | 1 | 7 | 23 | 64 | 5 |
| 23 | 0 | 1 | 7 | 23 | 65 | 4 |
| 24 | 0 | 1 | 7 | 23 | 65 | 4 |
| 25 | 0 | 1 | 7 | 23 | 65 | 4 |
| 26 | 0 | 1 | 7 | 23 | 65 | 4 |
| 27 | 0 | 2 | 6 | 23 | 65 | 4 |
| 28 | 0 | 2 | 6 | 23 | 65 | 4 |
| 29 | 0 | 2 | 6 | 23 | 65 | 4 |
| 30 | 0 | 2 | 6 | 24 | 63 | 5 |
| 31 | 0 | 2 | 6 | 24 | 63 | 5 |
Wind in January
Winds average 11 km/h in January.
Across January, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 11 | calm |
| 2 | 11 | calm |
| 3 | 11 | calm |
| 4 | 11 | calm |
| 5 | 11 | calm |
| 6 | 11 | calm |
| 7 | 11 | calm |
| 8 | 11 | calm |
| 9 | 11 | calm |
| 10 | 11 | calm |
| 11 | 11 | calm |
| 12 | 11 | calm |
| 13 | 11 | calm |
| 14 | 11 | calm |
| 15 | 11 | calm |
| 16 | 11 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 11 | calm |
| 22 | 11 | calm |
| 23 | 11 | calm |
| 24 | 11 | calm |
| 25 | 11 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
| 29 | 11 | calm |
| 30 | 11 | calm |
| 31 | 11 | calm |
Sunrise & sunset in January
Daylight runs from about 13 h 36 min at the start of January to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 24 minutes over January. Sunrise moves from 6:06 AM to 6:27 AM, and sunset from 7:39 PM to 7:38 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.6 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.5 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.4 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.2 | 13.2 | 13.2 | 13.2 |
| Sunrise (AM) | 6:06 | 6:06 | 6:07 | 6:08 | 6:08 | 6:09 | 6:10 | 6:10 | 6:11 | 6:12 | 6:12 | 6:13 | 6:14 | 6:15 | 6:15 | 6:16 | 6:17 | 6:17 | 6:18 | 6:19 | 6:20 | 6:20 | 6:21 | 6:22 | 6:23 | 6:23 | 6:24 | 6:25 | 6:25 | 6:26 | 6:27 |
| Sunset (PM) | 7:39 | 7:39 | 7:39 | 7:40 | 7:40 | 7:40 | 7:40 | 7:40 | 7:41 | 7:41 | 7:41 | 7:41 | 7:41 | 7:41 | 7:41 | 7:41 | 7:41 | 7:41 | 7:41 | 7:41 | 7:41 | 7:40 | 7:40 | 7:40 | 7:40 | 7:40 | 7:39 | 7:39 | 7:39 | 7:38 | 7:38 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.6 | 6:06 | 7:39 |
| 2 | 13.5 | 6:06 | 7:39 |
| 3 | 13.5 | 6:07 | 7:39 |
| 4 | 13.5 | 6:08 | 7:40 |
| 5 | 13.5 | 6:08 | 7:40 |
| 6 | 13.5 | 6:09 | 7:40 |
| 7 | 13.5 | 6:10 | 7:40 |
| 8 | 13.5 | 6:10 | 7:40 |
| 9 | 13.5 | 6:11 | 7:41 |
| 10 | 13.5 | 6:12 | 7:41 |
| 11 | 13.5 | 6:12 | 7:41 |
| 12 | 13.5 | 6:13 | 7:41 |
| 13 | 13.5 | 6:14 | 7:41 |
| 14 | 13.4 | 6:15 | 7:41 |
| 15 | 13.4 | 6:15 | 7:41 |
| 16 | 13.4 | 6:16 | 7:41 |
| 17 | 13.4 | 6:17 | 7:41 |
| 18 | 13.4 | 6:17 | 7:41 |
| 19 | 13.4 | 6:18 | 7:41 |
| 20 | 13.4 | 6:19 | 7:41 |
| 21 | 13.3 | 6:20 | 7:41 |
| 22 | 13.3 | 6:20 | 7:40 |
| 23 | 13.3 | 6:21 | 7:40 |
| 24 | 13.3 | 6:22 | 7:40 |
| 25 | 13.3 | 6:23 | 7:40 |
| 26 | 13.3 | 6:23 | 7:40 |
| 27 | 13.3 | 6:24 | 7:39 |
| 28 | 13.2 | 6:25 | 7:39 |
| 29 | 13.2 | 6:25 | 7:39 |
| 30 | 13.2 | 6:26 | 7:38 |
| 31 | 13.2 | 6:27 | 7:38 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 6.68 kWh/m².
For context, solar energy here swings from a low near 2.8 kWh/m² to a high of 6.7 kWh/m² in December across the year — January's 6.68 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.8 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.7 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.4 | 6.4 | 6.4 | 6.3 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.8 | Intense |
| 2 | 6.8 | Intense |
| 3 | 6.8 | Intense |
| 4 | 6.8 | Intense |
| 5 | 6.8 | Intense |
| 6 | 6.8 | Intense |
| 7 | 6.8 | Intense |
| 8 | 6.8 | Intense |
| 9 | 6.8 | Intense |
| 10 | 6.8 | Intense |
| 11 | 6.8 | Intense |
| 12 | 6.7 | Intense |
| 13 | 6.7 | Intense |
| 14 | 6.7 | Intense |
| 15 | 6.7 | Intense |
| 16 | 6.7 | Intense |
| 17 | 6.7 | Intense |
| 18 | 6.6 | Intense |
| 19 | 6.6 | Intense |
| 20 | 6.6 | Intense |
| 21 | 6.6 | Intense |
| 22 | 6.6 | Intense |
| 23 | 6.5 | Intense |
| 24 | 6.5 | Intense |
| 25 | 6.5 | Intense |
| 26 | 6.5 | Intense |
| 27 | 6.5 | Intense |
| 28 | 6.4 | Intense |
| 29 | 6.4 | Intense |
| 30 | 6.4 | Intense |
| 31 | 6.3 | Intense |
Is January a good time to visit San Bernardino?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is a weaker month for outdoor sightseeing in San Bernardino.
What to pack for San Bernardino in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, San Bernardino sees daytime highs around 33°C and nights near 23°C. Pack light clothes and sun protection. Worth having: rain gear. About 13 days see rain.
UV index in San Bernardino in January
Clear-sky midday UV in January peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in San Bernardino peaks around January 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 at about 5 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 15 | 14 | 11 | 9 | 6 | 5 | 5 | 5 | 8 | 8 | 12 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 14 | Extreme |
| Mar | 11 | Extreme |
| Apr | 9 | Very high |
| May | 6 | High |
| Jun | 5 | Moderate |
| Jul | 5 | Moderate |
| Aug | 5 | High |
| Sep | 8 | Very high |
| Oct | 8 | Very high |
| Nov | 12 | Extreme |
| Dec | 13 | Extreme |
Air quality in San Bernardino in January
Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.
Air quality in San Bernardino is worst in September — around 28 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (December, 10 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 11 | 12 | 11 | 13 | 13 | 15 | 17 | 25 | 28 | 18 | 13 | 10 |
| Level | Good | Moderate | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 12 | Moderate |
| Mar | 11 | Good |
| Apr | 13 | Moderate |
| May | 13 | Moderate |
| Jun | 15 | Moderate |
| Jul | 17 | Moderate |
| Aug | 25 | Moderate |
| Sep | 28 | Moderate |
| Oct | 18 | Moderate |
| Nov | 13 | Moderate |
| Dec | 10 | Good |
Where is San Bernardino?
San Bernardino sits at 25.3°S, 57.3°W, 0 m above sea level, in Paraguay. The nearest listed city is Areguá, 9.0 km away.
Topography around San Bernardino
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Bernardino.
Within 3 km, the terrain around San Bernardino has only modest variations in elevation — a maximum elevation change of 183 m around an average of 91 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 272 m; within 80 km, significant variations in elevation — a maximum elevation change of 529 m.
The land around San Bernardino is covered by trees (51%) and water (42%) within 3 km, trees (72%) within 16 km, and grassland (52%) and trees (39%) within 80 km.
Paraguay travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B / C / N
- 220 V · 50 Hz
- Prices
- ≈ 35% of US
- price level, 2025
- GDP per capita
- $7,027
- 2025
- Happiness
- 6.2 / 10
- World Happiness, 2025
- Safe drinking water
- 64%
- of population, 2024
- Homicide rate
- 6.8
- per 100k, 2023
- Road deaths
- 22
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Moderate
- EF EPI 531
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for San Bernardino (-25.3107°, -57.2963°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).