San_Ramon_ weather in January
In January, San_Ramon_ sees average daytime highs of 28°C and overnight lows near 20°C, with 21 mm of rain across 6.7 wet days and about 11.5 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.
Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 63% of the time in January, and the air most often feels humid.
Daylight stretches from about 11 h 24 min at the start of January to 11 h 36 min by month's end. Set against the rest of the year, January is San_Ramon_'s 2nd-clearest and 2nd-windiest month. For the whole year in context, see San_Ramon_'s year-round climate.
- Daytime high
- 28°
- 4th warmest
- Overnight low
- 20°
- 1st coldest
- Rainfall
- 21 mm
- 6.7 wet days
- Daylight
- 11 h 30 min
- 6:03 AM – 5:31 PM
- Cloud cover
- 36%
- 2nd clearest
- Wind
- 7 km/h
- 2nd windiest
- Solar energy
- 5.1 kWh/m²
- Travel score
- 6.8
- out of 10
Temperature in January
Day-to-day highs hold fairly steady near 28°C through the month.
A typical January day in San_Ramon_ reaches about 28°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, January runs about 1°C warmer than December and about 1°C cooler than 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) | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Avg low (°C) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 20 |
| 2 | 28 | 20 |
| 3 | 28 | 20 |
| 4 | 28 | 20 |
| 5 | 28 | 20 |
| 6 | 28 | 20 |
| 7 | 28 | 20 |
| 8 | 28 | 20 |
| 9 | 28 | 20 |
| 10 | 28 | 20 |
| 11 | 28 | 20 |
| 12 | 28 | 20 |
| 13 | 28 | 20 |
| 14 | 28 | 20 |
| 15 | 28 | 20 |
| 16 | 28 | 20 |
| 17 | 28 | 20 |
| 18 | 28 | 20 |
| 19 | 28 | 20 |
| 20 | 28 | 20 |
| 21 | 28 | 20 |
| 22 | 28 | 20 |
| 23 | 28 | 20 |
| 24 | 28 | 20 |
| 25 | 29 | 20 |
| 26 | 29 | 20 |
| 27 | 29 | 20 |
| 28 | 29 | 20 |
| 29 | 29 | 20 |
| 30 | 29 | 20 |
| 31 | 29 | 20 |
San_Ramon_ weather by month
How January compares with the rest of the year at a glance. January is the 4th-warmest and 11th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 20° | 21 | 6.7 | 11.5 | 6.8 |
| Feb | 29° / 20° | 15 | 4.2 | 11.7 | 6.4 |
| Mar | 30° / 20° | 24 | 7.9 | 11.9 | 5.6 |
| Apr | 29° / 21° | 98 | 20.7 | 12.2 | 4.1 |
| May | 28° / 21° | 381 | 29.6 | 12.5 | 3.3 |
| Jun | 27° / 21° | 417 | 29.8 | 12.6 | 3.3 |
| Jul | 27° / 21° | 320 | 29.9 | 12.5 | 3.3 |
| Aug | 27° / 21° | 398 | 30.4 | 12.3 | 3.3 |
| Sep | 27° / 20° | 442 | 29.8 | 12.1 | 3.3 |
| Oct | 26° / 20° | 503 | 30.7 | 11.8 | 3.3 |
| Nov | 26° / 20° | 267 | 26.5 | 11.5 | 3.9 |
| Dec | 27° / 20° | 75 | 16.3 | 11.4 | 5.7 |
Cloud cover in January
The sky is clear or mostly clear about 63% of the time in January.
Beyond those clear spells, partly cloudy skies cover about 19% of January, with mostly cloudy or overcast conditions the remaining 18%. Skies tend to open up as the month goes on.
| 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 (%) | 77 | 77 | 77 | 79 | 79 | 79 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 80 | 82 | 82 | 82 | 82 | 83 | 83 | 83 | 83 | 84 | 84 | 84 | 85 | 86 | 86 | 86 | 88 |
| Cloudier (%) | 23 | 23 | 23 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 14 | 12 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 77 | 23 |
| 2 | 77 | 23 |
| 3 | 77 | 23 |
| 4 | 79 | 21 |
| 5 | 79 | 21 |
| 6 | 79 | 21 |
| 7 | 80 | 20 |
| 8 | 80 | 20 |
| 9 | 80 | 20 |
| 10 | 80 | 20 |
| 11 | 80 | 20 |
| 12 | 80 | 20 |
| 13 | 80 | 20 |
| 14 | 80 | 20 |
| 15 | 80 | 20 |
| 16 | 82 | 18 |
| 17 | 82 | 18 |
| 18 | 82 | 18 |
| 19 | 82 | 18 |
| 20 | 83 | 17 |
| 21 | 83 | 17 |
| 22 | 83 | 17 |
| 23 | 83 | 17 |
| 24 | 84 | 16 |
| 25 | 84 | 16 |
| 26 | 84 | 16 |
| 27 | 85 | 15 |
| 28 | 86 | 14 |
| 29 | 86 | 14 |
| 30 | 86 | 14 |
| 31 | 88 | 12 |
Chance of precipitation in January
San_Ramon_ gets around 21 mm of rain over 6.7 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 23% and peaks near 35% on the wettest days. The odds ease toward the end of the month.
| 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 (%) | 35 | 34 | 33 | 31 | 30 | 29 | 29 | 28 | 27 | 26 | 25 | 25 | 24 | 23 | 22 | 22 | 21 | 20 | 20 | 19 | 18 | 18 | 17 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 |
| Rain chance (%) | |
|---|---|
| 1 | 35 |
| 2 | 34 |
| 3 | 33 |
| 4 | 31 |
| 5 | 30 |
| 6 | 29 |
| 7 | 29 |
| 8 | 28 |
| 9 | 27 |
| 10 | 26 |
| 11 | 25 |
| 12 | 25 |
| 13 | 24 |
| 14 | 23 |
| 15 | 22 |
| 16 | 22 |
| 17 | 21 |
| 18 | 20 |
| 19 | 20 |
| 20 | 19 |
| 21 | 18 |
| 22 | 18 |
| 23 | 17 |
| 24 | 16 |
| 25 | 16 |
| 26 | 15 |
| 27 | 15 |
| 28 | 15 |
| 29 | 15 |
| 30 | 15 |
| 31 | 15 |
Humidity in January
Most of January feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, January lands in the humid band about 67% of days. Sticky, muggy-or-worse air turns up on roughly 20% 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Comfortable (%) | 3 | 3 | 4 | 4 | 5 | 6 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 12 | 13 | 14 | 15 | 15 | 16 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 19 | 20 | 20 | 21 | 22 |
| Humid (%) | 58 | 60 | 62 | 64 | 65 | 66 | 68 | 68 | 69 | 69 | 69 | 69 | 69 | 69 | 68 | 68 | 68 | 68 | 68 | 68 | 69 | 68 | 69 | 69 | 68 | 69 | 68 | 67 | 68 | 67 | 66 |
| Muggy (%) | 39 | 37 | 34 | 32 | 30 | 28 | 26 | 25 | 23 | 22 | 21 | 20 | 19 | 18 | 18 | 17 | 16 | 16 | 15 | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 11 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 0 | 3 | 58 | 39 |
| 2 | 0 | 3 | 60 | 37 |
| 3 | 0 | 4 | 62 | 34 |
| 4 | 0 | 4 | 64 | 32 |
| 5 | 0 | 5 | 65 | 30 |
| 6 | 0 | 6 | 66 | 28 |
| 7 | 0 | 6 | 68 | 26 |
| 8 | 0 | 7 | 68 | 25 |
| 9 | 0 | 8 | 69 | 23 |
| 10 | 0 | 9 | 69 | 22 |
| 11 | 0 | 10 | 69 | 21 |
| 12 | 0 | 11 | 69 | 20 |
| 13 | 0 | 12 | 69 | 19 |
| 14 | 1 | 12 | 69 | 18 |
| 15 | 1 | 13 | 68 | 18 |
| 16 | 1 | 14 | 68 | 17 |
| 17 | 1 | 15 | 68 | 16 |
| 18 | 1 | 15 | 68 | 16 |
| 19 | 1 | 16 | 68 | 15 |
| 20 | 1 | 16 | 68 | 15 |
| 21 | 1 | 16 | 69 | 14 |
| 22 | 1 | 17 | 68 | 14 |
| 23 | 1 | 17 | 69 | 13 |
| 24 | 1 | 17 | 69 | 13 |
| 25 | 1 | 18 | 68 | 13 |
| 26 | 1 | 18 | 69 | 12 |
| 27 | 1 | 19 | 68 | 12 |
| 28 | 1 | 20 | 67 | 12 |
| 29 | 1 | 20 | 68 | 11 |
| 30 | 1 | 21 | 67 | 11 |
| 31 | 1 | 22 | 66 | 11 |
Wind in January
Winds average 7 km/h in January.
Across January, daily wind ranges from about 6 km/h on the calmest days to 7 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) | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| 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 | 6 | calm |
| 2 | 6 | calm |
| 3 | 6 | calm |
| 4 | 6 | calm |
| 5 | 7 | calm |
| 6 | 7 | calm |
| 7 | 7 | calm |
| 8 | 7 | calm |
| 9 | 7 | calm |
| 10 | 7 | calm |
| 11 | 7 | calm |
| 12 | 7 | calm |
| 13 | 7 | calm |
| 14 | 7 | calm |
| 15 | 7 | calm |
| 16 | 7 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
| 31 | 7 | calm |
Sunrise & sunset in January
Daylight runs from about 11 h 24 min at the start of January to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 12 minutes over January. Sunrise moves from 5:58 AM to 6:05 AM, and sunset from 5:24 PM to 5:38 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) | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.4 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 | 11.6 |
| Sunrise (AM) | 5:58 | 5:59 | 5:59 | 6:00 | 6:00 | 6:00 | 6:01 | 6:01 | 6:01 | 6:02 | 6:02 | 6:02 | 6:02 | 6:03 | 6:03 | 6:03 | 6:03 | 6:03 | 6:04 | 6:04 | 6:04 | 6:04 | 6:04 | 6:04 | 6:04 | 6:04 | 6:05 | 6:05 | 6:05 | 6:05 | 6:05 |
| Sunset (PM) | 5:24 | 5:24 | 5:25 | 5:25 | 5:26 | 5:26 | 5:27 | 5:27 | 5:28 | 5:28 | 5:29 | 5:29 | 5:30 | 5:30 | 5:31 | 5:31 | 5:32 | 5:32 | 5:33 | 5:33 | 5:34 | 5:34 | 5:35 | 5:35 | 5:35 | 5:36 | 5:36 | 5:37 | 5:37 | 5:37 | 5:38 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.4 | 5:58 | 5:24 |
| 2 | 11.4 | 5:59 | 5:24 |
| 3 | 11.4 | 5:59 | 5:25 |
| 4 | 11.4 | 6:00 | 5:25 |
| 5 | 11.4 | 6:00 | 5:26 |
| 6 | 11.4 | 6:00 | 5:26 |
| 7 | 11.4 | 6:01 | 5:27 |
| 8 | 11.4 | 6:01 | 5:27 |
| 9 | 11.4 | 6:01 | 5:28 |
| 10 | 11.4 | 6:02 | 5:28 |
| 11 | 11.4 | 6:02 | 5:29 |
| 12 | 11.5 | 6:02 | 5:29 |
| 13 | 11.5 | 6:02 | 5:30 |
| 14 | 11.5 | 6:03 | 5:30 |
| 15 | 11.5 | 6:03 | 5:31 |
| 16 | 11.5 | 6:03 | 5:31 |
| 17 | 11.5 | 6:03 | 5:32 |
| 18 | 11.5 | 6:03 | 5:32 |
| 19 | 11.5 | 6:04 | 5:33 |
| 20 | 11.5 | 6:04 | 5:33 |
| 21 | 11.5 | 6:04 | 5:34 |
| 22 | 11.5 | 6:04 | 5:34 |
| 23 | 11.5 | 6:04 | 5:35 |
| 24 | 11.5 | 6:04 | 5:35 |
| 25 | 11.5 | 6:04 | 5:35 |
| 26 | 11.5 | 6:04 | 5:36 |
| 27 | 11.5 | 6:05 | 5:36 |
| 28 | 11.5 | 6:05 | 5:37 |
| 29 | 11.5 | 6:05 | 5:37 |
| 30 | 11.5 | 6:05 | 5:37 |
| 31 | 11.6 | 6:05 | 5:38 |
Solar energy in January
Average shortwave solar energy reaching the ground each day in January, about 5.1 kWh/m².
For context, solar energy here swings from a low near 3.82 kWh/m² to a high of 6.19 kWh/m² in March across the year — January's 5.1 kWh/m² falls in the middle.
| 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) | 4.8 | 4.8 | 4.8 | 4.8 | 4.9 | 4.9 | 4.9 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | 5.1 | 5.1 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.3 | 5.3 | 5.3 | 5.3 | 5.4 | 5.4 | 5.4 | 5.4 | 5.5 | 5.5 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.8 | Bright |
| 2 | 4.8 | Bright |
| 3 | 4.8 | Bright |
| 4 | 4.8 | Bright |
| 5 | 4.9 | Bright |
| 6 | 4.9 | Bright |
| 7 | 4.9 | Bright |
| 8 | 4.9 | Bright |
| 9 | 4.9 | Bright |
| 10 | 5.0 | Bright |
| 11 | 5.0 | Bright |
| 12 | 5.0 | Bright |
| 13 | 5.0 | Bright |
| 14 | 5.0 | Bright |
| 15 | 5.1 | Bright |
| 16 | 5.1 | Bright |
| 17 | 5.1 | Bright |
| 18 | 5.1 | Bright |
| 19 | 5.2 | Bright |
| 20 | 5.2 | Bright |
| 21 | 5.2 | Bright |
| 22 | 5.3 | Bright |
| 23 | 5.3 | Bright |
| 24 | 5.3 | Bright |
| 25 | 5.3 | Bright |
| 26 | 5.4 | Bright |
| 27 | 5.4 | Bright |
| 28 | 5.4 | Bright |
| 29 | 5.4 | Bright |
| 30 | 5.5 | Bright |
| 31 | 5.5 | Bright |
Hazard calendar for San_Ramon_
None of San_Ramon_'s seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
San_Ramon_'s rainy season runs May–November, when most of the year's rain falls.
Is January a good time to visit San_Ramon_?
Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
January is a reasonable time to visit San_Ramon_ for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for San_Ramon_ in January
From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In January, San_Ramon_ sees daytime highs around 28°C and nights near 20°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.
Sea temperature near San_Ramon_ in January
The nearest coast averages about 29°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 29 km away) is warmest in April at about 29°C and coldest in November near 28°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 29 | Tropical |
| May | 29 | Tropical |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 28 | Tropical |
| Nov | 28 | Warm |
| Dec | 28 | Tropical |
UV index in San_Ramon_ in January
Clear-sky midday UV in January peaks around 11 (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_Ramon_ peaks around February 22 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 10 (very high).
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) | 11 | 14 | 14 | 14 | 12 | 13 | 12 | 12 | 12 | 12 | 11 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 14 | Extreme |
| Mar | 14 | Extreme |
| Apr | 14 | Extreme |
| May | 12 | Extreme |
| Jun | 13 | Extreme |
| Jul | 12 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 11 | Extreme |
| Dec | 10 | Very high |
Air quality in San_Ramon_ 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_Ramon_ is worst in May — around 18 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (January, 9 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) | 9 | 10 | 11 | 16 | 18 | 16 | 17 | 15 | 14 | 12 | 11 | 9 |
| Level | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 9 | Good |
| Feb | 10 | Good |
| Mar | 11 | Good |
| Apr | 16 | Moderate |
| May | 18 | Moderate |
| Jun | 16 | Moderate |
| Jul | 17 | Moderate |
| Aug | 15 | Moderate |
| Sep | 14 | Moderate |
| Oct | 12 | Moderate |
| Nov | 11 | Good |
| Dec | 9 | Good |
Where is San_Ramon_?
San_Ramon_ sits at 10.1°N, 84.5°W, 0 m above sea level, in Costa Rica. The nearest listed city is Esparza, 24 km away.
Topography around San_Ramon_
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San_Ramon_.
Within 3 km, the terrain around San_Ramon_ has significant variations in elevation — a maximum elevation change of 294 m around an average of 1,066 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,914 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,414 m.
The land around San_Ramon_ is covered by trees (53%), artificial surfaces (25%) and grassland (21%) within 3 km, trees (68%) and grassland (27%) within 16 km, and trees (61%) within 80 km.
Costa Rica travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 59% of US
- price level, 2025
- GDP per capita
- $19,970
- 2025
- Happiness
- 7.4 / 10
- World Happiness, 2025
- Safe drinking water
- 81%
- of population, 2024
- Homicide rate
- 17.7
- per 100k, 2023
- Road deaths
- 14.8
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 516
- 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_Ramon_ (10.088°, -84.4702°, 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).