San Mateo weather in December
In December, San Mateo sees average daytime highs of 27°C and overnight lows near 21°C, with 239 mm of rain across 20 wet days and about 11 hours of daylight. It is the 11th-warmest and 5th-wettest month of the year here.
Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 14% of the time in December, and the air most often feels muggy.
Daylight stretches from about 11 h 06 min at the start of December to 11 hours by month's end. Set against the rest of the year, December is San Mateo's 9th-clearest and 1st-windiest month. For the whole year in context, see San Mateo's year-round climate.
- Daytime high
- 27°
- 11th warmest
- Overnight low
- 21°
- 3rd coldest
- Rainfall
- 239 mm
- 20 wet days
- Daylight
- 11 hours
- 6:20 AM – 5:20 PM
- Cloud cover
- 75%
- 9th clearest
- Wind
- 6 km/h
- 1st windiest
- Solar energy
- 2.69 kWh/m²
- Travel score
- 5.0
- out of 10
Temperature in December
Day-to-day highs hold fairly steady near 27°C through the month.
A typical December day in San Mateo reaches about 27°C in the afternoon and slips back to 21°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 29°C. Set against its neighbours, December runs about 2°C cooler than November and on par with January.
| 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) | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
| Avg low (°C) | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 27 | 21 |
| 2 | 27 | 21 |
| 3 | 27 | 21 |
| 4 | 27 | 21 |
| 5 | 27 | 21 |
| 6 | 27 | 21 |
| 7 | 27 | 21 |
| 8 | 27 | 21 |
| 9 | 27 | 21 |
| 10 | 27 | 21 |
| 11 | 27 | 21 |
| 12 | 27 | 21 |
| 13 | 27 | 21 |
| 14 | 27 | 21 |
| 15 | 27 | 21 |
| 16 | 27 | 21 |
| 17 | 26 | 21 |
| 18 | 26 | 21 |
| 19 | 26 | 21 |
| 20 | 26 | 21 |
| 21 | 26 | 21 |
| 22 | 26 | 21 |
| 23 | 26 | 20 |
| 24 | 26 | 20 |
| 25 | 26 | 20 |
| 26 | 26 | 20 |
| 27 | 26 | 20 |
| 28 | 26 | 20 |
| 29 | 26 | 20 |
| 30 | 26 | 20 |
| 31 | 26 | 20 |
How December really feels in San Mateo
Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
San Mateo weather by month
How December compares with the rest of the year at a glance. December is the 11th-warmest and 5th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 20° | 119 | 16.3 | 11.1 | 5.5 |
| Feb | 27° / 20° | 94 | 13.7 | 11.4 | 5.7 |
| Mar | 29° / 21° | 94 | 14.2 | 11.9 | 5.3 |
| Apr | 31° / 22° | 95 | 13.8 | 12.4 | 4.1 |
| May | 33° / 23° | 274 | 20.6 | 12.8 | 2.8 |
| Jun | 33° / 24° | 229 | 22.4 | 13 | 2.4 |
| Jul | 32° / 24° | 318 | 26.1 | 12.9 | 2.5 |
| Aug | 32° / 24° | 323 | 26.4 | 12.6 | 2.5 |
| Sep | 31° / 24° | 294 | 24 | 12.1 | 2.9 |
| Oct | 30° / 23° | 224 | 19.6 | 11.6 | 3.9 |
| Nov | 28° / 22° | 200 | 18.6 | 11.2 | 4.6 |
| Dec | 27° / 21° | 239 | 20 | 11 | 5.0 |
Cloud cover in December
The sky is clear or mostly clear about 14% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 72%.
| 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 (%) | 33 | 32 | 32 | 31 | 31 | 31 | 31 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 27 | 27 | 25 | 25 | 25 | 25 | 25 | 26 | 27 | 26 | 27 |
| Cloudier (%) | 67 | 68 | 68 | 69 | 69 | 69 | 69 | 70 | 70 | 70 | 70 | 70 | 71 | 71 | 71 | 71 | 72 | 72 | 72 | 72 | 73 | 73 | 75 | 75 | 75 | 75 | 75 | 74 | 73 | 74 | 73 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 33 | 67 |
| 2 | 32 | 68 |
| 3 | 32 | 68 |
| 4 | 31 | 69 |
| 5 | 31 | 69 |
| 6 | 31 | 69 |
| 7 | 31 | 69 |
| 8 | 30 | 70 |
| 9 | 30 | 70 |
| 10 | 30 | 70 |
| 11 | 30 | 70 |
| 12 | 30 | 70 |
| 13 | 29 | 71 |
| 14 | 29 | 71 |
| 15 | 29 | 71 |
| 16 | 29 | 71 |
| 17 | 28 | 72 |
| 18 | 28 | 72 |
| 19 | 28 | 72 |
| 20 | 28 | 72 |
| 21 | 27 | 73 |
| 22 | 27 | 73 |
| 23 | 25 | 75 |
| 24 | 25 | 75 |
| 25 | 25 | 75 |
| 26 | 25 | 75 |
| 27 | 25 | 75 |
| 28 | 26 | 74 |
| 29 | 27 | 73 |
| 30 | 26 | 74 |
| 31 | 27 | 73 |
Chance of precipitation in December
San Mateo gets around 239 mm of rain over 20 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 64% and peaks near 67% 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 (%) | 65 | 65 | 66 | 66 | 66 | 67 | 67 | 67 | 67 | 67 | 67 | 67 | 66 | 66 | 65 | 65 | 64 | 64 | 63 | 63 | 63 | 62 | 62 | 61 | 61 | 60 | 59 | 58 | 58 | 57 | 56 |
| Rain chance (%) | |
|---|---|
| 1 | 65 |
| 2 | 65 |
| 3 | 66 |
| 4 | 66 |
| 5 | 66 |
| 6 | 67 |
| 7 | 67 |
| 8 | 67 |
| 9 | 67 |
| 10 | 67 |
| 11 | 67 |
| 12 | 67 |
| 13 | 66 |
| 14 | 66 |
| 15 | 65 |
| 16 | 65 |
| 17 | 64 |
| 18 | 64 |
| 19 | 63 |
| 20 | 63 |
| 21 | 63 |
| 22 | 62 |
| 23 | 62 |
| 24 | 61 |
| 25 | 61 |
| 26 | 60 |
| 27 | 59 |
| 28 | 58 |
| 29 | 58 |
| 30 | 57 |
| 31 | 56 |
Humidity in December
Most of December feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the muggy band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 92% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 10 | 10 | 11 | 12 | 12 | 13 | 13 | 13 | 14 | 14 | 14 |
| Muggy (%) | 36 | 38 | 39 | 41 | 41 | 42 | 42 | 42 | 42 | 42 | 43 | 43 | 44 | 45 | 45 | 46 | 47 | 47 | 48 | 49 | 50 | 52 | 52 | 53 | 54 | 55 | 56 | 57 | 57 | 58 | 58 |
| Oppressive (%) | 60 | 58 | 57 | 55 | 55 | 54 | 54 | 54 | 54 | 54 | 52 | 52 | 51 | 50 | 49 | 47 | 46 | 45 | 43 | 42 | 40 | 38 | 37 | 35 | 34 | 32 | 31 | 30 | 29 | 28 | 28 |
| Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|
| 1 | 4 | 36 | 60 |
| 2 | 4 | 38 | 58 |
| 3 | 4 | 39 | 57 |
| 4 | 4 | 41 | 55 |
| 5 | 4 | 41 | 55 |
| 6 | 4 | 42 | 54 |
| 7 | 4 | 42 | 54 |
| 8 | 4 | 42 | 54 |
| 9 | 4 | 42 | 54 |
| 10 | 4 | 42 | 54 |
| 11 | 5 | 43 | 52 |
| 12 | 5 | 43 | 52 |
| 13 | 5 | 44 | 51 |
| 14 | 6 | 45 | 50 |
| 15 | 6 | 45 | 49 |
| 16 | 7 | 46 | 47 |
| 17 | 7 | 47 | 46 |
| 18 | 8 | 47 | 45 |
| 19 | 8 | 48 | 43 |
| 20 | 9 | 49 | 42 |
| 21 | 10 | 50 | 40 |
| 22 | 10 | 52 | 38 |
| 23 | 11 | 52 | 37 |
| 24 | 12 | 53 | 35 |
| 25 | 12 | 54 | 34 |
| 26 | 13 | 55 | 32 |
| 27 | 13 | 56 | 31 |
| 28 | 13 | 57 | 30 |
| 29 | 14 | 57 | 29 |
| 30 | 14 | 58 | 28 |
| 31 | 14 | 58 | 28 |
Wind in December
Winds average 6 km/h in December, the windiest month of the year.
Across December, daily wind ranges from about 6 km/h on the calmest days to 6 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 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| 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 | 6 | calm |
| 6 | 6 | calm |
| 7 | 6 | calm |
| 8 | 6 | calm |
| 9 | 6 | calm |
| 10 | 6 | calm |
| 11 | 6 | calm |
| 12 | 6 | calm |
| 13 | 6 | calm |
| 14 | 6 | calm |
| 15 | 6 | calm |
| 16 | 6 | calm |
| 17 | 6 | calm |
| 18 | 6 | calm |
| 19 | 6 | calm |
| 20 | 6 | calm |
| 21 | 6 | calm |
| 22 | 6 | calm |
| 23 | 6 | calm |
| 24 | 6 | calm |
| 25 | 6 | calm |
| 26 | 6 | calm |
| 27 | 6 | calm |
| 28 | 6 | calm |
| 29 | 6 | calm |
| 30 | 6 | calm |
| 31 | 6 | calm |
Sunrise & sunset in December
Daylight runs from about 11 h 06 min at the start of December to 11 hours by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 6 minutes over December. Sunrise moves from 6:11 AM to 6:27 AM, and sunset from 5:15 PM to 5:27 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) | 11.1 | 11.1 | 11.1 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunrise (AM) | 6:11 | 6:12 | 6:13 | 6:13 | 6:14 | 6:14 | 6:15 | 6:15 | 6:16 | 6:17 | 6:17 | 6:18 | 6:18 | 6:19 | 6:19 | 6:20 | 6:20 | 6:21 | 6:21 | 6:22 | 6:22 | 6:23 | 6:23 | 6:24 | 6:24 | 6:25 | 6:25 | 6:25 | 6:26 | 6:26 | 6:27 |
| Sunset (PM) | 5:15 | 5:16 | 5:16 | 5:16 | 5:16 | 5:16 | 5:17 | 5:17 | 5:17 | 5:18 | 5:18 | 5:18 | 5:19 | 5:19 | 5:19 | 5:20 | 5:20 | 5:21 | 5:21 | 5:21 | 5:22 | 5:22 | 5:23 | 5:23 | 5:24 | 5:24 | 5:25 | 5:25 | 5:26 | 5:26 | 5:27 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.1 | 6:11 | 5:15 |
| 2 | 11.1 | 6:12 | 5:16 |
| 3 | 11.1 | 6:13 | 5:16 |
| 4 | 11.0 | 6:13 | 5:16 |
| 5 | 11.0 | 6:14 | 5:16 |
| 6 | 11.0 | 6:14 | 5:16 |
| 7 | 11.0 | 6:15 | 5:17 |
| 8 | 11.0 | 6:15 | 5:17 |
| 9 | 11.0 | 6:16 | 5:17 |
| 10 | 11.0 | 6:17 | 5:18 |
| 11 | 11.0 | 6:17 | 5:18 |
| 12 | 11.0 | 6:18 | 5:18 |
| 13 | 11.0 | 6:18 | 5:19 |
| 14 | 11.0 | 6:19 | 5:19 |
| 15 | 11.0 | 6:19 | 5:19 |
| 16 | 11.0 | 6:20 | 5:20 |
| 17 | 11.0 | 6:20 | 5:20 |
| 18 | 11.0 | 6:21 | 5:21 |
| 19 | 11.0 | 6:21 | 5:21 |
| 20 | 11.0 | 6:22 | 5:21 |
| 21 | 11.0 | 6:22 | 5:22 |
| 22 | 11.0 | 6:23 | 5:22 |
| 23 | 11.0 | 6:23 | 5:23 |
| 24 | 11.0 | 6:24 | 5:23 |
| 25 | 11.0 | 6:24 | 5:24 |
| 26 | 11.0 | 6:25 | 5:24 |
| 27 | 11.0 | 6:25 | 5:25 |
| 28 | 11.0 | 6:25 | 5:25 |
| 29 | 11.0 | 6:26 | 5:26 |
| 30 | 11.0 | 6:26 | 5:26 |
| 31 | 11.0 | 6:27 | 5:27 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 2.69 kWh/m² — the year's lowest.
For context, solar energy here swings from a low near 2.69 kWh/m² to a high of 5.9 kWh/m² in April across the year — December's 2.69 kWh/m² sits near the bottom.
| 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) | 3.0 | 2.9 | 2.9 | 2.9 | 2.9 | 2.8 | 2.8 | 2.8 | 2.8 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.7 | 2.8 | 2.8 | 2.8 | 2.8 | 2.9 | 2.9 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.0 | Moderate |
| 2 | 2.9 | Moderate |
| 3 | 2.9 | Moderate |
| 4 | 2.9 | Moderate |
| 5 | 2.9 | Moderate |
| 6 | 2.8 | Moderate |
| 7 | 2.8 | Moderate |
| 8 | 2.8 | Moderate |
| 9 | 2.8 | Moderate |
| 10 | 2.7 | Moderate |
| 11 | 2.7 | Moderate |
| 12 | 2.7 | Moderate |
| 13 | 2.7 | Moderate |
| 14 | 2.7 | Moderate |
| 15 | 2.7 | Moderate |
| 16 | 2.7 | Moderate |
| 17 | 2.7 | Moderate |
| 18 | 2.7 | Moderate |
| 19 | 2.7 | Moderate |
| 20 | 2.7 | Moderate |
| 21 | 2.7 | Moderate |
| 22 | 2.7 | Moderate |
| 23 | 2.7 | Moderate |
| 24 | 2.7 | Moderate |
| 25 | 2.7 | Moderate |
| 26 | 2.8 | Moderate |
| 27 | 2.8 | Moderate |
| 28 | 2.8 | Moderate |
| 29 | 2.8 | Moderate |
| 30 | 2.9 | Moderate |
| 31 | 2.9 | Moderate |
Is December a good time to visit San Mateo?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a reasonable time to visit San Mateo for sightseeing.
What to pack for San Mateo in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, San Mateo sees daytime highs around 27°C and nights near 21°C. Pack rain gear. Worth having: light clothes. About 20 days see rain.
UV index in San Mateo in December
Clear-sky midday UV in December peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in San Mateo peaks around August 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 8 (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) | 9 | 11 | 12 | 13 | 13 | 13 | 12 | 14 | 13 | 10 | 8 | 8 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 11 | Extreme |
| Mar | 12 | Extreme |
| Apr | 13 | Extreme |
| May | 13 | Extreme |
| Jun | 13 | Extreme |
| Jul | 12 | Extreme |
| Aug | 14 | Extreme |
| Sep | 13 | Extreme |
| Oct | 10 | Extreme |
| Nov | 8 | Very high |
| Dec | 8 | Very high |
Air quality in San Mateo in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in San Mateo is worst in April — around 20 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 16 | 16 | 19 | 20 | 15 | 13 | 13 | 14 | 16 | 15 | 15 | 14 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 16 | Moderate |
| Feb | 16 | Moderate |
| Mar | 19 | Moderate |
| Apr | 20 | Moderate |
| May | 15 | Moderate |
| Jun | 13 | Moderate |
| Jul | 13 | Moderate |
| Aug | 14 | Moderate |
| Sep | 16 | Moderate |
| Oct | 15 | Moderate |
| Nov | 15 | Moderate |
| Dec | 14 | Moderate |
Where is San Mateo?
San Mateo sits at 16.9°N, 121.6°E, 82 m above sea level, in Philippines. The nearest listed city is Ramon, 12 km away.
Topography around San Mateo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Mateo.
Within 3 km, the terrain around San Mateo has only modest variations in elevation — a maximum elevation change of 19 m around an average of 78 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 402 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,889 m.
The land around San Mateo is covered by cropland (78%) within 3 km, cropland (70%) and trees (22%) within 16 km, and trees (70%) and cropland (22%) within 80 km.
Philippines travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B / C
- 230 V · 60 Hz
- Prices
- ≈ 33% of US
- price level, 2025
- GDP per capita
- $4,171
- 2025
- Happiness
- 6.2 / 10
- World Happiness, 2025
- Safe drinking water
- 48%
- of population, 2024
- Homicide rate
- 4.3
- per 100k, 2023
- Road deaths
- 12
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- High
- EF EPI 569
- 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 Mateo (16.8821°, 121.5869°, elevation 82 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).