Last updated: July 31, 2025
Under the Köppen–Geiger climate classification Santa Maria Tonameca features a tropical savanna climate (Aw). Temperatures typically range between 24 °C (76 °F) and 26 °C (80 °F) through the year, but rarely can drop to 17 °C (63 °F) or can rise to as high as 31 °C (88 °F). The average annual precipitation amounts to about 2692 mm (106.0 inches) and receives 178 rainy days on the 1 mm (0.04 inches) threshold annually. Santa Maria Tonameca enjoys an average of 3591 hours of sunshine throughout the year, and daylight varies from 11 hours 12 minutes to 13 hours 1 minutes per day.
The warmest months in Santa Maria Tonameca are April, May and July, with daily mean temperatures ranging from 26 to 26 °C (79 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 24 to 25 °C (76 - 76 °F) throughout the day. On average each year, Santa Maria Tonameca experiences 327 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | 30°C (86°F) | 30°C (87°F) | 30°C (87°F) | 31°C (88°F) | 31°C (88°F) | 30°C (87°F) | 30°C (87°F) | 30°C (87°F) | 30°C (85°F) | 30°C (86°F) | 30°C (85°F) | 29°C (84°F) |
| Mean maximum | 29°C (85°F) | 29°C (85°F) | 30°C (86°F) | 30°C (87°F) | 30°C (87°F) | 29°C (85°F) | 30°C (86°F) | 30°C (86°F) | 29°C (85°F) | 30°C (85°F) | 29°C (84°F) | 29°C (84°F) |
| Average high | 27°C (82°F) | 28°C (82°F) | 29°C (84°F) | 29°C (85°F) | 29°C (84°F) | 28°C (83°F) | 29°C (84°F) | 28°C (83°F) | 28°C (83°F) | 28°C (82°F) | 28°C (82°F) | 27°C (82°F) |
| Daily mean | 24°C (76°F) | 25°C (76°F) | 25°C (78°F) | 26°C (79°F) | 26°C (80°F) | 26°C (79°F) | 26°C (79°F) | 26°C (79°F) | 26°C (78°F) | 25°C (78°F) | 25°C (77°F) | 24°C (76°F) |
| Average low | 22°C (71°F) | 22°C (71°F) | 22°C (73°F) | 23°C (74°F) | 24°C (75°F) | 24°C (75°F) | 24°C (75°F) | 24°C (75°F) | 24°C (75°F) | 24°C (75°F) | 23°C (73°F) | 22°C (71°F) |
| Mean minimum | 19°C (67°F) | 20°C (68°F) | 21°C (70°F) | 21°C (71°F) | 22°C (73°F) | 23°C (74°F) | 23°C (73°F) | 23°C (73°F) | 23°C (73°F) | 23°C (73°F) | 21°C (70°F) | 19°C (67°F) |
| Minimum | 17°C (63°F) | 17°C (63°F) | 19°C (67°F) | 20°C (69°F) | 21°C (71°F) | 22°C (72°F) | 22°C (73°F) | 23°C (73°F) | 22°C (72°F) | 22°C (72°F) | 19°C (67°F) | 19°C (66°F) |
Compare temperature, precipitation, sunshine, UV index in Santa Maria Tonameca, Mexico with other places around the world.
Santa Maria Tonameca usually has the most precipitation in June, September and October, with an average of 26 rainy days and 579 mm (22.8 inches) of precipitation per month. The driest months in Santa Maria Tonameca are February, March and December. On average, 14 mm (0.5 inches) of precipitation falls during these months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average precipitation mm (inches) | 18 (0.7) | 13 (0.5) | 17 (0.7) | 22 (0.9) | 155 (6.1) | 540 (21.3) | 251 (9.9) | 411 (16.2) | 551 (21.7) | 644 (25.4) | 58 (2.3) | 12 (0.5) |
| Average precipitation days (≥ 1 mm) | 4 | 3 | 3 | 5 | 18 | 25 | 25 | 27 | 26 | 27 | 11 | 4 |
The sunniest months in Santa Maria Tonameca are March, May and July, when the sun shines an average of 10 hours 28 minutes a day. Least sunny months in Santa Maria Tonameca: January, June and September receive an average of 8 hours 50 minutes of sunshine daily.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean monthly sunshine hours | 247 | 282 | 322 | 319 | 326 | 274 | 325 | 299 | 281 | 296 | 307 | 308 |
| Mean daily daylight hours | 11h 18m | 11h 37m | 12h 2m | 12h 29m | 12h 51m | 13h 1m | 12h 56m | 12h 36m | 12h 11m | 11h 45m | 11h 23m | 11h 12m |
Santa Maria Tonameca experiences the highest level of ultraviolet (UV) radiation in April, May and June, when the maximum UV index can reach values of 14 - 14, which corresponds to the Extreme category of sun exposure. January, November and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 10. For more detailed information, check out our hourly Santa Maria Tonameca UV Index data.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV Index (month maximum) | 10 | 11 | 13 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 10 | 9 |